Commit | Line | Data |
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284f4730 | 1 | /* Keyboard and mouse input; editor command loop. |
d925fb39 | 2 | Copyright (C) 1985,86,87,88,89,93,94,95,96,97 Free Software Foundation, Inc. |
284f4730 JB |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
7b4aedb9 | 8 | the Free Software Foundation; either version 2, or (at your option) |
284f4730 JB |
9 | any later version. |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
19 | Boston, MA 02111-1307, USA. */ | |
284f4730 JB |
20 | |
21 | /* Allow config.h to undefine symbols found here. */ | |
22 | #include <signal.h> | |
23 | ||
18160b98 | 24 | #include <config.h> |
284f4730 | 25 | #include <stdio.h> |
284f4730 JB |
26 | #include "termchar.h" |
27 | #include "termopts.h" | |
28 | #include "lisp.h" | |
29 | #include "termhooks.h" | |
30 | #include "macros.h" | |
ff11dfa1 | 31 | #include "frame.h" |
284f4730 JB |
32 | #include "window.h" |
33 | #include "commands.h" | |
34 | #include "buffer.h" | |
37cd9f30 | 35 | #include "charset.h" |
284f4730 | 36 | #include "disptab.h" |
f4255cd1 | 37 | #include "dispextern.h" |
284f4730 | 38 | #include "keyboard.h" |
e39da3d7 | 39 | #include "syntax.h" |
497ba7a1 | 40 | #include "intervals.h" |
9ac0d9e0 | 41 | #include "blockinput.h" |
e8886a1d | 42 | #include "puresize.h" |
284f4730 JB |
43 | #include <setjmp.h> |
44 | #include <errno.h> | |
45 | ||
80e4aa30 RS |
46 | #ifdef MSDOS |
47 | #include "msdos.h" | |
48 | #include <time.h> | |
49 | #else /* not MSDOS */ | |
284f4730 JB |
50 | #ifndef VMS |
51 | #include <sys/ioctl.h> | |
284f4730 | 52 | #endif |
80e4aa30 | 53 | #endif /* not MSDOS */ |
284f4730 | 54 | |
52baf19e | 55 | #include "syssignal.h" |
6ef5b54f | 56 | #include "systty.h" |
52baf19e | 57 | |
c5e3b6c5 RS |
58 | /* This is to get the definitions of the XK_ symbols. */ |
59 | #ifdef HAVE_X_WINDOWS | |
60 | #include "xterm.h" | |
61 | #endif | |
62 | ||
e98a93eb GV |
63 | #ifdef HAVE_NTGUI |
64 | #include "w32term.h" | |
65 | #endif /* HAVE_NTGUI */ | |
66 | ||
0c2611c5 RS |
67 | /* Include systime.h after xterm.h to avoid double inclusion of time.h. */ |
68 | #include "systime.h" | |
69 | ||
52baf19e JB |
70 | extern int errno; |
71 | ||
9ac0d9e0 JB |
72 | /* Variables for blockinput.h: */ |
73 | ||
74 | /* Non-zero if interrupt input is blocked right now. */ | |
63927c41 | 75 | int interrupt_input_blocked; |
9ac0d9e0 JB |
76 | |
77 | /* Nonzero means an input interrupt has arrived | |
78 | during the current critical section. */ | |
63927c41 | 79 | int interrupt_input_pending; |
9ac0d9e0 JB |
80 | |
81 | ||
437f6112 RS |
82 | /* File descriptor to use for input. */ |
83 | extern int input_fd; | |
284f4730 | 84 | |
e98a93eb | 85 | #ifdef HAVE_WINDOW_SYSTEM |
284f4730 | 86 | /* Make all keyboard buffers much bigger when using X windows. */ |
f019cded RS |
87 | #ifdef macintosh |
88 | /* But not too big (local data > 32K error) if on macintosh */ | |
89 | #define KBD_BUFFER_SIZE 512 | |
90 | #else | |
284f4730 | 91 | #define KBD_BUFFER_SIZE 4096 |
f019cded | 92 | #endif |
284f4730 JB |
93 | #else /* No X-windows, character input */ |
94 | #define KBD_BUFFER_SIZE 256 | |
95 | #endif /* No X-windows */ | |
96 | ||
97 | /* Following definition copied from eval.c */ | |
98 | ||
99 | struct backtrace | |
100 | { | |
101 | struct backtrace *next; | |
102 | Lisp_Object *function; | |
103 | Lisp_Object *args; /* Points to vector of args. */ | |
104 | int nargs; /* length of vector. If nargs is UNEVALLED, | |
105 | args points to slot holding list of | |
106 | unevalled args */ | |
107 | char evalargs; | |
108 | }; | |
109 | ||
c5fdd383 KH |
110 | #ifdef MULTI_KBOARD |
111 | KBOARD *initial_kboard; | |
112 | KBOARD *current_kboard; | |
113 | KBOARD *all_kboards; | |
1e8bd3da | 114 | int single_kboard; |
6c6083a9 | 115 | #else |
c5fdd383 | 116 | KBOARD the_only_kboard; |
6c6083a9 | 117 | #endif |
612b78ef | 118 | |
284f4730 JB |
119 | /* Non-nil disable property on a command means |
120 | do not execute it; call disabled-command-hook's value instead. */ | |
2e894dab | 121 | Lisp_Object Qdisabled, Qdisabled_command_hook; |
284f4730 JB |
122 | |
123 | #define NUM_RECENT_KEYS (100) | |
124 | int recent_keys_index; /* Index for storing next element into recent_keys */ | |
125 | int total_keys; /* Total number of elements stored into recent_keys */ | |
5160df46 | 126 | Lisp_Object recent_keys; /* A vector, holding the last 100 keystrokes */ |
284f4730 | 127 | |
6569cc8d JB |
128 | /* Vector holding the key sequence that invoked the current command. |
129 | It is reused for each command, and it may be longer than the current | |
130 | sequence; this_command_key_count indicates how many elements | |
131 | actually mean something. | |
132 | It's easier to staticpro a single Lisp_Object than an array. */ | |
133 | Lisp_Object this_command_keys; | |
134 | int this_command_key_count; | |
284f4730 | 135 | |
7d18f9ae RS |
136 | /* This vector is used as a buffer to record the events that were actually read |
137 | by read_key_sequence. */ | |
138 | Lisp_Object raw_keybuf; | |
139 | int raw_keybuf_count; | |
140 | ||
141 | #define GROW_RAW_KEYBUF \ | |
142 | if (raw_keybuf_count == XVECTOR (raw_keybuf)->size) \ | |
143 | { \ | |
144 | int newsize = 2 * XVECTOR (raw_keybuf)->size; \ | |
145 | Lisp_Object new; \ | |
146 | new = Fmake_vector (make_number (newsize), Qnil); \ | |
147 | bcopy (XVECTOR (raw_keybuf)->contents, XVECTOR (new)->contents, \ | |
148 | raw_keybuf_count * sizeof (Lisp_Object)); \ | |
149 | raw_keybuf = new; \ | |
150 | } | |
151 | ||
6321824f RS |
152 | /* Number of elements of this_command_keys |
153 | that precede this key sequence. */ | |
154 | int this_single_command_key_start; | |
155 | ||
71918b75 RS |
156 | /* Record values of this_command_key_count and echo_length () |
157 | before this command was read. */ | |
158 | static int before_command_key_count; | |
159 | static int before_command_echo_length; | |
160 | /* Values of before_command_key_count and before_command_echo_length | |
161 | saved by reset-this-command-lengths. */ | |
162 | static int before_command_key_count_1; | |
163 | static int before_command_echo_length_1; | |
164 | /* Flag set by reset-this-command-lengths, | |
165 | saying to reset the lengths when add_command_key is called. */ | |
166 | static int before_command_restore_flag; | |
167 | ||
284f4730 JB |
168 | extern int minbuf_level; |
169 | ||
a59b172a RS |
170 | extern int message_enable_multibyte; |
171 | ||
284f4730 JB |
172 | extern struct backtrace *backtrace_list; |
173 | ||
7ee32cda GM |
174 | /* If non-nil, the function that implements the display of help. |
175 | It's called with one argument, the help string to display. */ | |
176 | ||
177 | Lisp_Object Vshow_help_function; | |
178 | ||
284f4730 JB |
179 | /* Nonzero means do menu prompting. */ |
180 | static int menu_prompting; | |
181 | ||
182 | /* Character to see next line of menu prompt. */ | |
183 | static Lisp_Object menu_prompt_more_char; | |
184 | ||
185 | /* For longjmp to where kbd input is being done. */ | |
186 | static jmp_buf getcjmp; | |
187 | ||
188 | /* True while doing kbd input. */ | |
189 | int waiting_for_input; | |
190 | ||
191 | /* True while displaying for echoing. Delays C-g throwing. */ | |
985f9f66 | 192 | |
284f4730 JB |
193 | static int echoing; |
194 | ||
985f9f66 GM |
195 | /* Non-null means we can start echoing at the next input pause even |
196 | though there is something in the echo area. */ | |
197 | ||
198 | static struct kboard *ok_to_echo_at_next_pause; | |
199 | ||
200 | /* The kboard currently echoing, or null for none. Set in echo_now to | |
201 | the kboard echoing. Reset to 0 in cancel_echoing. If non-null, | |
202 | and a current echo area message exists, we know that it comes from | |
203 | echoing. */ | |
204 | ||
205 | static struct kboard *echo_kboard; | |
1fc93d49 | 206 | |
03361bcc RS |
207 | /* Nonzero means disregard local maps for the menu bar. */ |
208 | static int inhibit_local_menu_bar_menus; | |
209 | ||
80e4aa30 | 210 | /* Nonzero means C-g should cause immediate error-signal. */ |
284f4730 JB |
211 | int immediate_quit; |
212 | ||
fa90970d RS |
213 | /* The user's ERASE setting. */ |
214 | Lisp_Object Vtty_erase_char; | |
215 | ||
284f4730 | 216 | /* Character to recognize as the help char. */ |
7e85b935 | 217 | Lisp_Object Vhelp_char; |
284f4730 | 218 | |
ecb7cb34 KH |
219 | /* List of other event types to recognize as meaning "help". */ |
220 | Lisp_Object Vhelp_event_list; | |
221 | ||
284f4730 JB |
222 | /* Form to execute when help char is typed. */ |
223 | Lisp_Object Vhelp_form; | |
224 | ||
7e85b935 RS |
225 | /* Command to run when the help character follows a prefix key. */ |
226 | Lisp_Object Vprefix_help_command; | |
227 | ||
9f9c0e27 RS |
228 | /* List of items that should move to the end of the menu bar. */ |
229 | Lisp_Object Vmenu_bar_final_items; | |
a73c5e29 | 230 | |
6526ab49 RS |
231 | /* Non-nil means show the equivalent key-binding for |
232 | any M-x command that has one. | |
233 | The value can be a length of time to show the message for. | |
234 | If the value is non-nil and not a number, we wait 2 seconds. */ | |
235 | Lisp_Object Vsuggest_key_bindings; | |
236 | ||
284f4730 JB |
237 | /* Character that causes a quit. Normally C-g. |
238 | ||
239 | If we are running on an ordinary terminal, this must be an ordinary | |
240 | ASCII char, since we want to make it our interrupt character. | |
241 | ||
242 | If we are not running on an ordinary terminal, it still needs to be | |
243 | an ordinary ASCII char. This character needs to be recognized in | |
244 | the input interrupt handler. At this point, the keystroke is | |
245 | represented as a struct input_event, while the desired quit | |
246 | character is specified as a lispy event. The mapping from struct | |
247 | input_events to lispy events cannot run in an interrupt handler, | |
248 | and the reverse mapping is difficult for anything but ASCII | |
249 | keystrokes. | |
250 | ||
251 | FOR THESE ELABORATE AND UNSATISFYING REASONS, quit_char must be an | |
252 | ASCII character. */ | |
253 | int quit_char; | |
254 | ||
255 | extern Lisp_Object current_global_map; | |
256 | extern int minibuf_level; | |
257 | ||
9dd3131c RS |
258 | /* If non-nil, this is a map that overrides all other local maps. */ |
259 | Lisp_Object Voverriding_local_map; | |
260 | ||
d0a49716 RS |
261 | /* If non-nil, Voverriding_local_map applies to the menu bar. */ |
262 | Lisp_Object Voverriding_local_map_menu_flag; | |
263 | ||
7f07d5ca RS |
264 | /* Keymap that defines special misc events that should |
265 | be processed immediately at a low level. */ | |
266 | Lisp_Object Vspecial_event_map; | |
267 | ||
284f4730 JB |
268 | /* Current depth in recursive edits. */ |
269 | int command_loop_level; | |
270 | ||
271 | /* Total number of times command_loop has read a key sequence. */ | |
272 | int num_input_keys; | |
273 | ||
274 | /* Last input character read as a command. */ | |
275 | Lisp_Object last_command_char; | |
276 | ||
7d6de002 RS |
277 | /* Last input character read as a command, not counting menus |
278 | reached by the mouse. */ | |
279 | Lisp_Object last_nonmenu_event; | |
280 | ||
284f4730 JB |
281 | /* Last input character read for any purpose. */ |
282 | Lisp_Object last_input_char; | |
283 | ||
dbc4e1c1 | 284 | /* If not Qnil, a list of objects to be read as subsequent command input. */ |
24597608 | 285 | Lisp_Object Vunread_command_events; |
284f4730 | 286 | |
7d18f9ae RS |
287 | /* If not Qnil, a list of objects to be read as subsequent command input |
288 | including input method processing. */ | |
289 | Lisp_Object Vunread_input_method_events; | |
290 | ||
291 | /* If not Qnil, a list of objects to be read as subsequent command input | |
292 | but NOT including input method processing. */ | |
293 | Lisp_Object Vunread_post_input_method_events; | |
294 | ||
86e5706b RS |
295 | /* If not -1, an event to be read as subsequent command input. */ |
296 | int unread_command_char; | |
297 | ||
cd21b839 JB |
298 | /* If not Qnil, this is a switch-frame event which we decided to put |
299 | off until the end of a key sequence. This should be read as the | |
dbc4e1c1 | 300 | next command input, after any unread_command_events. |
8f805655 JB |
301 | |
302 | read_key_sequence uses this to delay switch-frame events until the | |
303 | end of the key sequence; Fread_char uses it to put off switch-frame | |
304 | events until a non-ASCII event is acceptable as input. */ | |
305 | Lisp_Object unread_switch_frame; | |
cd21b839 | 306 | |
9fa4395d RS |
307 | /* A mask of extra modifier bits to put into every keyboard char. */ |
308 | int extra_keyboard_modifiers; | |
309 | ||
284f4730 JB |
310 | /* Char to use as prefix when a meta character is typed in. |
311 | This is bound on entry to minibuffer in case ESC is changed there. */ | |
312 | ||
313 | Lisp_Object meta_prefix_char; | |
314 | ||
315 | /* Last size recorded for a current buffer which is not a minibuffer. */ | |
316 | static int last_non_minibuf_size; | |
317 | ||
06ef7355 | 318 | /* Number of idle seconds before an auto-save and garbage collection. */ |
284f4730 JB |
319 | static Lisp_Object Vauto_save_timeout; |
320 | ||
321 | /* Total number of times read_char has returned. */ | |
4abfba1f | 322 | int num_input_events; |
284f4730 | 323 | |
51172b6d | 324 | /* Total number of times read_char has returned, outside of macros. */ |
c43b1734 | 325 | int num_nonmacro_input_events; |
51172b6d | 326 | |
284f4730 JB |
327 | /* Auto-save automatically when this many characters have been typed |
328 | since the last time. */ | |
329 | ||
330 | static int auto_save_interval; | |
331 | ||
c43b1734 | 332 | /* Value of num_nonmacro_input_events as of last auto save. */ |
284f4730 JB |
333 | |
334 | int last_auto_save; | |
335 | ||
284f4730 | 336 | /* The command being executed by the command loop. |
6c7178b9 KH |
337 | Commands may set this, and the value set will be copied into |
338 | current_kboard->Vlast_command instead of the actual command. */ | |
d5eecefb RS |
339 | Lisp_Object Vthis_command; |
340 | ||
341 | /* This is like Vthis_command, except that commands never set it. */ | |
342 | Lisp_Object real_this_command; | |
284f4730 | 343 | |
b453f72e KH |
344 | /* The value of point when the last command was executed. */ |
345 | int last_point_position; | |
346 | ||
047688cb RS |
347 | /* The buffer that was current when the last command was started. */ |
348 | Lisp_Object last_point_position_buffer; | |
349 | ||
4c52b668 KH |
350 | /* The frame in which the last input event occurred, or Qmacro if the |
351 | last event came from a macro. We use this to determine when to | |
352 | generate switch-frame events. This may be cleared by functions | |
353 | like Fselect_frame, to make sure that a switch-frame event is | |
354 | generated by the next character. */ | |
355 | Lisp_Object internal_last_event_frame; | |
4c52b668 KH |
356 | |
357 | /* A user-visible version of the above, intended to allow users to | |
358 | figure out where the last event came from, if the event doesn't | |
359 | carry that information itself (i.e. if it was a character). */ | |
360 | Lisp_Object Vlast_event_frame; | |
361 | ||
1113d9db JB |
362 | /* The timestamp of the last input event we received from the X server. |
363 | X Windows wants this for selection ownership. */ | |
284f4730 JB |
364 | unsigned long last_event_timestamp; |
365 | ||
366 | Lisp_Object Qself_insert_command; | |
367 | Lisp_Object Qforward_char; | |
368 | Lisp_Object Qbackward_char; | |
e58aa385 | 369 | Lisp_Object Qundefined; |
d925fb39 | 370 | Lisp_Object Qtimer_event_handler; |
284f4730 JB |
371 | |
372 | /* read_key_sequence stores here the command definition of the | |
373 | key sequence that it reads. */ | |
374 | Lisp_Object read_key_sequence_cmd; | |
375 | ||
376 | /* Form to evaluate (if non-nil) when Emacs is started. */ | |
377 | Lisp_Object Vtop_level; | |
378 | ||
379 | /* User-supplied string to translate input characters through. */ | |
380 | Lisp_Object Vkeyboard_translate_table; | |
381 | ||
382 | /* Keymap mapping ASCII function key sequences onto their preferred forms. */ | |
383 | extern Lisp_Object Vfunction_key_map; | |
384 | ||
e0301c07 RS |
385 | /* Another keymap that maps key sequences into key sequences. |
386 | This one takes precedence over ordinary definitions. */ | |
387 | extern Lisp_Object Vkey_translation_map; | |
a612e298 | 388 | |
7d18f9ae RS |
389 | /* If non-nil, this implements the current input method. */ |
390 | Lisp_Object Vinput_method_function; | |
391 | Lisp_Object Qinput_method_function; | |
392 | ||
d5eecefb RS |
393 | /* When we call Vinput_method_function, |
394 | this holds the echo area message that was just erased. */ | |
395 | Lisp_Object Vinput_method_previous_message; | |
396 | ||
86e5706b RS |
397 | /* Non-nil means deactivate the mark at end of this command. */ |
398 | Lisp_Object Vdeactivate_mark; | |
399 | ||
48e416d4 RS |
400 | /* Menu bar specified in Lucid Emacs fashion. */ |
401 | ||
402 | Lisp_Object Vlucid_menu_bar_dirty_flag; | |
403 | Lisp_Object Qrecompute_lucid_menubar, Qactivate_menubar_hook; | |
404 | ||
cdb9d665 RS |
405 | Lisp_Object Qecho_area_clear_hook; |
406 | ||
86e5706b | 407 | /* Hooks to run before and after each command. */ |
59aadc81 RS |
408 | Lisp_Object Qpre_command_hook, Vpre_command_hook; |
409 | Lisp_Object Qpost_command_hook, Vpost_command_hook; | |
40932d1a | 410 | Lisp_Object Qcommand_hook_internal, Vcommand_hook_internal; |
59aadc81 RS |
411 | /* Hook run after a command if there's no more input soon. */ |
412 | Lisp_Object Qpost_command_idle_hook, Vpost_command_idle_hook; | |
413 | ||
414 | /* Delay time in microseconds before running post-command-idle-hook. */ | |
415 | int post_command_idle_delay; | |
86e5706b | 416 | |
8a792f3a RS |
417 | /* List of deferred actions to be performed at a later time. |
418 | The precise format isn't relevant here; we just check whether it is nil. */ | |
419 | Lisp_Object Vdeferred_action_list; | |
420 | ||
421 | /* Function to call to handle deferred actions, when there are any. */ | |
422 | Lisp_Object Vdeferred_action_function; | |
3ef14e46 | 423 | Lisp_Object Qdeferred_action_function; |
8a792f3a | 424 | |
d5eecefb RS |
425 | Lisp_Object Qinput_method_exit_on_first_char; |
426 | Lisp_Object Qinput_method_use_echo_area; | |
427 | ||
284f4730 JB |
428 | /* File in which we write all commands we read. */ |
429 | FILE *dribble; | |
430 | ||
431 | /* Nonzero if input is available. */ | |
432 | int input_pending; | |
433 | ||
b04904fb RS |
434 | /* 1 if should obey 0200 bit in input chars as "Meta", 2 if should |
435 | keep 0200 bit in input chars. 0 to ignore the 0200 bit. */ | |
436 | ||
284f4730 JB |
437 | int meta_key; |
438 | ||
439 | extern char *pending_malloc_warning; | |
440 | ||
beecf6a1 KH |
441 | /* Circular buffer for pre-read keyboard input. */ |
442 | static struct input_event kbd_buffer[KBD_BUFFER_SIZE]; | |
443 | ||
444 | /* Vector to GCPRO the frames and windows mentioned in kbd_buffer. | |
445 | ||
446 | The interrupt-level event handlers will never enqueue an event on a | |
447 | frame which is not in Vframe_list, and once an event is dequeued, | |
448 | internal_last_event_frame or the event itself points to the frame. | |
449 | So that's all fine. | |
450 | ||
451 | But while the event is sitting in the queue, it's completely | |
452 | unprotected. Suppose the user types one command which will run for | |
453 | a while and then delete a frame, and then types another event at | |
454 | the frame that will be deleted, before the command gets around to | |
455 | it. Suppose there are no references to this frame elsewhere in | |
456 | Emacs, and a GC occurs before the second event is dequeued. Now we | |
457 | have an event referring to a freed frame, which will crash Emacs | |
458 | when it is dequeued. | |
459 | ||
460 | Similar things happen when an event on a scroll bar is enqueued; the | |
461 | window may be deleted while the event is in the queue. | |
462 | ||
463 | So, we use this vector to protect the frame_or_window field in the | |
464 | event queue. That way, they'll be dequeued as dead frames or | |
465 | windows, but still valid lisp objects. | |
466 | ||
467 | If kbd_buffer[i].kind != no_event, then | |
468 | (XVECTOR (kbd_buffer_frame_or_window)->contents[i] | |
469 | == kbd_buffer[i].frame_or_window. */ | |
470 | static Lisp_Object kbd_buffer_frame_or_window; | |
471 | ||
472 | /* Pointer to next available character in kbd_buffer. | |
473 | If kbd_fetch_ptr == kbd_store_ptr, the buffer is empty. | |
474 | This may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the the | |
475 | next available char is in kbd_buffer[0]. */ | |
476 | static struct input_event *kbd_fetch_ptr; | |
477 | ||
478 | /* Pointer to next place to store character in kbd_buffer. This | |
479 | may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the next | |
480 | character should go in kbd_buffer[0]. */ | |
7ee32cda | 481 | static struct input_event * volatile kbd_store_ptr; |
beecf6a1 KH |
482 | |
483 | /* The above pair of variables forms a "queue empty" flag. When we | |
484 | enqueue a non-hook event, we increment kbd_store_ptr. When we | |
485 | dequeue a non-hook event, we increment kbd_fetch_ptr. We say that | |
486 | there is input available iff the two pointers are not equal. | |
487 | ||
488 | Why not just have a flag set and cleared by the enqueuing and | |
489 | dequeuing functions? Such a flag could be screwed up by interrupts | |
490 | at inopportune times. */ | |
491 | ||
f3253854 | 492 | /* If this flag is non-nil, we check mouse_moved to see when the |
a9d77f1f RS |
493 | mouse moves, and motion events will appear in the input stream. |
494 | Otherwise, mouse motion is ignored. */ | |
495 | static Lisp_Object do_mouse_tracking; | |
284f4730 | 496 | |
284f4730 JB |
497 | /* Symbols to head events. */ |
498 | Lisp_Object Qmouse_movement; | |
3c370943 | 499 | Lisp_Object Qscroll_bar_movement; |
cd21b839 | 500 | Lisp_Object Qswitch_frame; |
bbdc2092 | 501 | Lisp_Object Qdelete_frame; |
af17bd2b KH |
502 | Lisp_Object Qiconify_frame; |
503 | Lisp_Object Qmake_frame_visible; | |
7ee32cda | 504 | Lisp_Object Qhelp_echo; |
cd21b839 | 505 | |
284f4730 JB |
506 | /* Symbols to denote kinds of events. */ |
507 | Lisp_Object Qfunction_key; | |
508 | Lisp_Object Qmouse_click; | |
07de30b9 GV |
509 | #ifdef WINDOWSNT |
510 | Lisp_Object Qmouse_wheel; | |
1161d367 | 511 | Lisp_Object Qlanguage_change; |
07de30b9 | 512 | #endif |
a24dc617 | 513 | Lisp_Object Qdrag_n_drop; |
284f4730 | 514 | /* Lisp_Object Qmouse_movement; - also an event header */ |
284f4730 JB |
515 | |
516 | /* Properties of event headers. */ | |
517 | Lisp_Object Qevent_kind; | |
88cb0656 | 518 | Lisp_Object Qevent_symbol_elements; |
284f4730 | 519 | |
e8886a1d RS |
520 | /* menu item parts */ |
521 | Lisp_Object Qmenu_alias; | |
598a9fa7 | 522 | Lisp_Object Qmenu_enable; |
74c1de23 RS |
523 | Lisp_Object QCenable, QCvisible, QChelp, QCfilter, QCkeys, QCkey_sequence; |
524 | Lisp_Object QCbutton, QCtoggle, QCradio; | |
e8886a1d RS |
525 | extern Lisp_Object Vdefine_key_rebound_commands; |
526 | extern Lisp_Object Qmenu_item; | |
598a9fa7 | 527 | |
0a7f1fc0 JB |
528 | /* An event header symbol HEAD may have a property named |
529 | Qevent_symbol_element_mask, which is of the form (BASE MODIFIERS); | |
530 | BASE is the base, unmodified version of HEAD, and MODIFIERS is the | |
531 | mask of modifiers applied to it. If present, this is used to help | |
532 | speed up parse_modifiers. */ | |
533 | Lisp_Object Qevent_symbol_element_mask; | |
534 | ||
535 | /* An unmodified event header BASE may have a property named | |
536 | Qmodifier_cache, which is an alist mapping modifier masks onto | |
537 | modified versions of BASE. If present, this helps speed up | |
538 | apply_modifiers. */ | |
539 | Lisp_Object Qmodifier_cache; | |
540 | ||
5ec75a55 | 541 | /* Symbols to use for parts of windows. */ |
284f4730 | 542 | Lisp_Object Qmode_line; |
e5d77022 | 543 | Lisp_Object Qvertical_line; |
3c370943 | 544 | Lisp_Object Qvertical_scroll_bar; |
5ec75a55 RS |
545 | Lisp_Object Qmenu_bar; |
546 | ||
f4255cd1 JB |
547 | Lisp_Object recursive_edit_unwind (), command_loop (); |
548 | Lisp_Object Fthis_command_keys (); | |
03b4122a | 549 | Lisp_Object Qextended_command_history; |
c04cbc3b | 550 | EMACS_TIME timer_check (); |
284f4730 | 551 | |
f4385381 RS |
552 | extern Lisp_Object Vhistory_length; |
553 | ||
2c834fb3 KH |
554 | extern char *x_get_keysym_name (); |
555 | ||
8eb4d8ef RS |
556 | static void record_menu_key (); |
557 | ||
f4eef8b4 RS |
558 | Lisp_Object Qpolling_period; |
559 | ||
d9d4c147 | 560 | /* List of absolute timers. Appears in order of next scheduled event. */ |
c04cbc3b RS |
561 | Lisp_Object Vtimer_list; |
562 | ||
d9d4c147 KH |
563 | /* List of idle time timers. Appears in order of next scheduled event. */ |
564 | Lisp_Object Vtimer_idle_list; | |
565 | ||
87dd9b9b RS |
566 | /* Incremented whenever a timer is run. */ |
567 | int timers_run; | |
568 | ||
a9f16aa9 KH |
569 | extern Lisp_Object Vprint_level, Vprint_length; |
570 | ||
ffd56f97 JB |
571 | /* Address (if not 0) of EMACS_TIME to zero out if a SIGIO interrupt |
572 | happens. */ | |
573 | EMACS_TIME *input_available_clear_time; | |
284f4730 JB |
574 | |
575 | /* Nonzero means use SIGIO interrupts; zero means use CBREAK mode. | |
576 | Default is 1 if INTERRUPT_INPUT is defined. */ | |
577 | int interrupt_input; | |
578 | ||
579 | /* Nonzero while interrupts are temporarily deferred during redisplay. */ | |
580 | int interrupts_deferred; | |
581 | ||
87dd9b9b | 582 | /* Nonzero means use ^S/^Q for flow control. */ |
284f4730 JB |
583 | int flow_control; |
584 | ||
284f4730 JB |
585 | /* Allow m- file to inhibit use of FIONREAD. */ |
586 | #ifdef BROKEN_FIONREAD | |
587 | #undef FIONREAD | |
588 | #endif | |
589 | ||
590 | /* We are unable to use interrupts if FIONREAD is not available, | |
591 | so flush SIGIO so we won't try. */ | |
592 | #ifndef FIONREAD | |
593 | #ifdef SIGIO | |
594 | #undef SIGIO | |
595 | #endif | |
596 | #endif | |
597 | ||
e98a93eb | 598 | /* If we support a window system, turn on the code to poll periodically |
34f04431 | 599 | to detect C-g. It isn't actually used when doing interrupt input. */ |
e98a93eb | 600 | #ifdef HAVE_WINDOW_SYSTEM |
284f4730 JB |
601 | #define POLL_FOR_INPUT |
602 | #endif | |
284f4730 JB |
603 | \f |
604 | /* Global variable declarations. */ | |
605 | ||
606 | /* Function for init_keyboard to call with no args (if nonzero). */ | |
607 | void (*keyboard_init_hook) (); | |
608 | ||
609 | static int read_avail_input (); | |
610 | static void get_input_pending (); | |
9fd7d808 | 611 | static int readable_events (); |
8150596a RS |
612 | static Lisp_Object read_char_x_menu_prompt (); |
613 | static Lisp_Object read_char_minibuf_menu_prompt (); | |
a612e298 | 614 | static Lisp_Object make_lispy_event (); |
514354e9 | 615 | #ifdef HAVE_MOUSE |
a612e298 | 616 | static Lisp_Object make_lispy_movement (); |
514354e9 | 617 | #endif |
a612e298 RS |
618 | static Lisp_Object modify_event_symbol (); |
619 | static Lisp_Object make_lispy_switch_frame (); | |
3d31316f | 620 | static int parse_solitary_modifier (); |
dfcf069d AS |
621 | static void save_getcjmp (); |
622 | static void restore_getcjmp (); | |
7ee32cda | 623 | static Lisp_Object apply_modifiers P_ ((int, Lisp_Object)); |
284f4730 JB |
624 | |
625 | /* > 0 if we are to echo keystrokes. */ | |
626 | static int echo_keystrokes; | |
627 | ||
8026024c KH |
628 | /* Nonzero means don't try to suspend even if the operating system seems |
629 | to support it. */ | |
630 | static int cannot_suspend; | |
631 | ||
284f4730 JB |
632 | #define min(a,b) ((a)<(b)?(a):(b)) |
633 | #define max(a,b) ((a)>(b)?(a):(b)) | |
634 | ||
635 | /* Install the string STR as the beginning of the string of echoing, | |
636 | so that it serves as a prompt for the next character. | |
637 | Also start echoing. */ | |
638 | ||
dfcf069d | 639 | void |
284f4730 JB |
640 | echo_prompt (str) |
641 | char *str; | |
642 | { | |
643 | int len = strlen (str); | |
7a80a6f6 | 644 | |
ba72822c KH |
645 | if (len > ECHOBUFSIZE - 4) |
646 | len = ECHOBUFSIZE - 4; | |
c5fdd383 KH |
647 | bcopy (str, current_kboard->echobuf, len); |
648 | current_kboard->echoptr = current_kboard->echobuf + len; | |
649 | *current_kboard->echoptr = '\0'; | |
284f4730 | 650 | |
c5fdd383 | 651 | current_kboard->echo_after_prompt = len; |
7a80a6f6 | 652 | |
3dbd9ee4 | 653 | echo_now (); |
284f4730 JB |
654 | } |
655 | ||
df0f2ba1 | 656 | /* Add C to the echo string, if echoing is going on. |
284f4730 JB |
657 | C can be a character, which is printed prettily ("M-C-x" and all that |
658 | jazz), or a symbol, whose name is printed. */ | |
659 | ||
dfcf069d | 660 | void |
284f4730 JB |
661 | echo_char (c) |
662 | Lisp_Object c; | |
663 | { | |
664 | extern char *push_key_description (); | |
665 | ||
c5fdd383 | 666 | if (current_kboard->immediate_echo) |
284f4730 | 667 | { |
c5fdd383 | 668 | char *ptr = current_kboard->echoptr; |
df0f2ba1 | 669 | |
c5fdd383 | 670 | if (ptr != current_kboard->echobuf) |
284f4730 JB |
671 | *ptr++ = ' '; |
672 | ||
673 | /* If someone has passed us a composite event, use its head symbol. */ | |
88cb0656 | 674 | c = EVENT_HEAD (c); |
284f4730 | 675 | |
8c18cbfb | 676 | if (INTEGERP (c)) |
284f4730 | 677 | { |
c5fdd383 | 678 | if (ptr - current_kboard->echobuf > ECHOBUFSIZE - 6) |
284f4730 JB |
679 | return; |
680 | ||
cb5df6ae | 681 | ptr = push_key_description (XINT (c), ptr); |
284f4730 | 682 | } |
8c18cbfb | 683 | else if (SYMBOLP (c)) |
284f4730 JB |
684 | { |
685 | struct Lisp_String *name = XSYMBOL (c)->name; | |
fc932ac6 | 686 | if ((ptr - current_kboard->echobuf) + STRING_BYTES (name) + 4 |
301738ed | 687 | > ECHOBUFSIZE) |
284f4730 | 688 | return; |
fc932ac6 RS |
689 | bcopy (name->data, ptr, STRING_BYTES (name)); |
690 | ptr += STRING_BYTES (name); | |
284f4730 JB |
691 | } |
692 | ||
c5fdd383 | 693 | if (current_kboard->echoptr == current_kboard->echobuf |
ecb7cb34 | 694 | && help_char_p (c)) |
284f4730 JB |
695 | { |
696 | strcpy (ptr, " (Type ? for further options)"); | |
697 | ptr += strlen (ptr); | |
698 | } | |
699 | ||
700 | *ptr = 0; | |
c5fdd383 | 701 | current_kboard->echoptr = ptr; |
284f4730 | 702 | |
3dbd9ee4 | 703 | echo_now (); |
284f4730 JB |
704 | } |
705 | } | |
706 | ||
707 | /* Temporarily add a dash to the end of the echo string if it's not | |
708 | empty, so that it serves as a mini-prompt for the very next character. */ | |
709 | ||
dfcf069d | 710 | void |
284f4730 JB |
711 | echo_dash () |
712 | { | |
c5fdd383 KH |
713 | if (!current_kboard->immediate_echo |
714 | && current_kboard->echoptr == current_kboard->echobuf) | |
284f4730 | 715 | return; |
7a80a6f6 | 716 | /* Do nothing if we just printed a prompt. */ |
c5fdd383 KH |
717 | if (current_kboard->echo_after_prompt |
718 | == current_kboard->echoptr - current_kboard->echobuf) | |
7a80a6f6 | 719 | return; |
4bafa972 | 720 | /* Do nothing if not echoing at all. */ |
c5fdd383 | 721 | if (current_kboard->echoptr == 0) |
4bafa972 | 722 | return; |
284f4730 JB |
723 | |
724 | /* Put a dash at the end of the buffer temporarily, | |
725 | but make it go away when the next character is added. */ | |
c5fdd383 KH |
726 | current_kboard->echoptr[0] = '-'; |
727 | current_kboard->echoptr[1] = 0; | |
284f4730 | 728 | |
3dbd9ee4 | 729 | echo_now (); |
284f4730 JB |
730 | } |
731 | ||
732 | /* Display the current echo string, and begin echoing if not already | |
733 | doing so. */ | |
734 | ||
07a59269 | 735 | void |
3dbd9ee4 | 736 | echo_now () |
284f4730 | 737 | { |
c5fdd383 | 738 | if (!current_kboard->immediate_echo) |
284f4730 JB |
739 | { |
740 | int i; | |
c5fdd383 | 741 | current_kboard->immediate_echo = 1; |
284f4730 JB |
742 | |
743 | for (i = 0; i < this_command_key_count; i++) | |
d0a57728 RS |
744 | { |
745 | Lisp_Object c; | |
746 | c = XVECTOR (this_command_keys)->contents[i]; | |
747 | if (! (EVENT_HAS_PARAMETERS (c) | |
748 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
749 | echo_char (c); | |
750 | } | |
284f4730 JB |
751 | echo_dash (); |
752 | } | |
753 | ||
754 | echoing = 1; | |
985f9f66 | 755 | echo_kboard = current_kboard; |
301738ed RS |
756 | message2_nolog (current_kboard->echobuf, strlen (current_kboard->echobuf), |
757 | ! NILP (current_buffer->enable_multibyte_characters)); | |
284f4730 JB |
758 | echoing = 0; |
759 | ||
760 | if (waiting_for_input && !NILP (Vquit_flag)) | |
761 | quit_throw_to_read_char (); | |
762 | } | |
763 | ||
764 | /* Turn off echoing, for the start of a new command. */ | |
765 | ||
dfcf069d | 766 | void |
284f4730 JB |
767 | cancel_echoing () |
768 | { | |
c5fdd383 KH |
769 | current_kboard->immediate_echo = 0; |
770 | current_kboard->echoptr = current_kboard->echobuf; | |
771 | current_kboard->echo_after_prompt = -1; | |
1fc93d49 | 772 | ok_to_echo_at_next_pause = 0; |
985f9f66 | 773 | echo_kboard = 0; |
284f4730 JB |
774 | } |
775 | ||
776 | /* Return the length of the current echo string. */ | |
777 | ||
778 | static int | |
779 | echo_length () | |
780 | { | |
c5fdd383 | 781 | return current_kboard->echoptr - current_kboard->echobuf; |
284f4730 JB |
782 | } |
783 | ||
784 | /* Truncate the current echo message to its first LEN chars. | |
785 | This and echo_char get used by read_key_sequence when the user | |
ff11dfa1 | 786 | switches frames while entering a key sequence. */ |
284f4730 JB |
787 | |
788 | static void | |
789 | echo_truncate (len) | |
790 | int len; | |
791 | { | |
c5fdd383 KH |
792 | current_kboard->echobuf[len] = '\0'; |
793 | current_kboard->echoptr = current_kboard->echobuf + len; | |
40932d1a | 794 | truncate_echo_area (len); |
284f4730 JB |
795 | } |
796 | ||
797 | \f | |
798 | /* Functions for manipulating this_command_keys. */ | |
799 | static void | |
800 | add_command_key (key) | |
801 | Lisp_Object key; | |
802 | { | |
6569cc8d JB |
803 | int size = XVECTOR (this_command_keys)->size; |
804 | ||
71918b75 RS |
805 | /* If reset-this-command-length was called recently, obey it now. |
806 | See the doc string of that function for an explanation of why. */ | |
807 | if (before_command_restore_flag) | |
808 | { | |
809 | this_command_key_count = before_command_key_count_1; | |
6321824f RS |
810 | if (this_command_key_count < this_single_command_key_start) |
811 | this_single_command_key_start = this_command_key_count; | |
71918b75 RS |
812 | echo_truncate (before_command_echo_length_1); |
813 | before_command_restore_flag = 0; | |
814 | } | |
815 | ||
6569cc8d | 816 | if (this_command_key_count >= size) |
284f4730 | 817 | { |
9b8eb840 | 818 | Lisp_Object new_keys; |
6569cc8d | 819 | |
9b8eb840 | 820 | new_keys = Fmake_vector (make_number (size * 2), Qnil); |
6569cc8d JB |
821 | bcopy (XVECTOR (this_command_keys)->contents, |
822 | XVECTOR (new_keys)->contents, | |
8f805655 | 823 | size * sizeof (Lisp_Object)); |
6569cc8d JB |
824 | |
825 | this_command_keys = new_keys; | |
284f4730 | 826 | } |
6569cc8d JB |
827 | |
828 | XVECTOR (this_command_keys)->contents[this_command_key_count++] = key; | |
284f4730 JB |
829 | } |
830 | \f | |
831 | Lisp_Object | |
832 | recursive_edit_1 () | |
833 | { | |
834 | int count = specpdl_ptr - specpdl; | |
835 | Lisp_Object val; | |
836 | ||
837 | if (command_loop_level > 0) | |
838 | { | |
839 | specbind (Qstandard_output, Qt); | |
840 | specbind (Qstandard_input, Qt); | |
841 | } | |
842 | ||
843 | val = command_loop (); | |
844 | if (EQ (val, Qt)) | |
845 | Fsignal (Qquit, Qnil); | |
cb252880 RS |
846 | /* Handle throw from read_minibuf when using minibuffer |
847 | while it's active but we're in another window. */ | |
848 | if (STRINGP (val)) | |
849 | Fsignal (Qerror, Fcons (val, Qnil)); | |
284f4730 | 850 | |
cb5df6ae | 851 | return unbind_to (count, Qnil); |
284f4730 JB |
852 | } |
853 | ||
854 | /* When an auto-save happens, record the "time", and don't do again soon. */ | |
5846638c | 855 | |
07a59269 | 856 | void |
284f4730 JB |
857 | record_auto_save () |
858 | { | |
c43b1734 | 859 | last_auto_save = num_nonmacro_input_events; |
284f4730 | 860 | } |
5846638c RS |
861 | |
862 | /* Make an auto save happen as soon as possible at command level. */ | |
863 | ||
dfcf069d | 864 | void |
5846638c RS |
865 | force_auto_save_soon () |
866 | { | |
867 | last_auto_save = - auto_save_interval - 1; | |
241ceaf7 RS |
868 | |
869 | record_asynch_buffer_change (); | |
5846638c | 870 | } |
284f4730 | 871 | \f |
284f4730 JB |
872 | DEFUN ("recursive-edit", Frecursive_edit, Srecursive_edit, 0, 0, "", |
873 | "Invoke the editor command loop recursively.\n\ | |
874 | To get out of the recursive edit, a command can do `(throw 'exit nil)';\n\ | |
875 | that tells this function to return.\n\ | |
876 | Alternately, `(throw 'exit t)' makes this function signal an error.\n\ | |
877 | This function is called by the editor initialization to begin editing.") | |
878 | () | |
879 | { | |
880 | int count = specpdl_ptr - specpdl; | |
881 | Lisp_Object val; | |
882 | ||
883 | command_loop_level++; | |
884 | update_mode_lines = 1; | |
885 | ||
886 | record_unwind_protect (recursive_edit_unwind, | |
887 | (command_loop_level | |
888 | && current_buffer != XBUFFER (XWINDOW (selected_window)->buffer)) | |
889 | ? Fcurrent_buffer () | |
890 | : Qnil); | |
891 | recursive_edit_1 (); | |
892 | return unbind_to (count, Qnil); | |
893 | } | |
894 | ||
895 | Lisp_Object | |
896 | recursive_edit_unwind (buffer) | |
897 | Lisp_Object buffer; | |
898 | { | |
899 | if (!NILP (buffer)) | |
900 | Fset_buffer (buffer); | |
901 | ||
902 | command_loop_level--; | |
903 | update_mode_lines = 1; | |
904 | return Qnil; | |
905 | } | |
906 | \f | |
604ccd1d | 907 | static void |
1e8bd3da | 908 | any_kboard_state () |
604ccd1d | 909 | { |
1e8bd3da RS |
910 | #ifdef MULTI_KBOARD |
911 | #if 0 /* Theory: if there's anything in Vunread_command_events, | |
912 | it will right away be read by read_key_sequence, | |
913 | and then if we do switch KBOARDS, it will go into the side | |
914 | queue then. So we don't need to do anything special here -- rms. */ | |
604ccd1d | 915 | if (CONSP (Vunread_command_events)) |
4524b161 | 916 | { |
c5fdd383 KH |
917 | current_kboard->kbd_queue |
918 | = nconc2 (Vunread_command_events, current_kboard->kbd_queue); | |
919 | current_kboard->kbd_queue_has_data = 1; | |
4524b161 | 920 | } |
604ccd1d | 921 | Vunread_command_events = Qnil; |
1e8bd3da RS |
922 | #endif |
923 | single_kboard = 0; | |
924 | #endif | |
604ccd1d | 925 | } |
1e8bd3da RS |
926 | |
927 | /* Switch to the single-kboard state, making current_kboard | |
928 | the only KBOARD from which further input is accepted. */ | |
929 | ||
930 | void | |
931 | single_kboard_state () | |
932 | { | |
933 | #ifdef MULTI_KBOARD | |
934 | single_kboard = 1; | |
604ccd1d | 935 | #endif |
1e8bd3da RS |
936 | } |
937 | ||
938 | /* Maintain a stack of kboards, so other parts of Emacs | |
939 | can switch temporarily to the kboard of a given frame | |
940 | and then revert to the previous status. */ | |
941 | ||
942 | struct kboard_stack | |
943 | { | |
944 | KBOARD *kboard; | |
945 | struct kboard_stack *next; | |
946 | }; | |
947 | ||
948 | static struct kboard_stack *kboard_stack; | |
949 | ||
950 | void | |
951 | push_frame_kboard (f) | |
952 | FRAME_PTR f; | |
953 | { | |
ab48365b | 954 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
955 | struct kboard_stack *p |
956 | = (struct kboard_stack *) xmalloc (sizeof (struct kboard_stack)); | |
957 | ||
958 | p->next = kboard_stack; | |
959 | p->kboard = current_kboard; | |
960 | kboard_stack = p; | |
961 | ||
962 | current_kboard = FRAME_KBOARD (f); | |
ab48365b | 963 | #endif |
1e8bd3da RS |
964 | } |
965 | ||
966 | void | |
967 | pop_frame_kboard () | |
968 | { | |
ab48365b | 969 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
970 | struct kboard_stack *p = kboard_stack; |
971 | current_kboard = p->kboard; | |
972 | kboard_stack = p->next; | |
973 | xfree (p); | |
ab48365b | 974 | #endif |
1e8bd3da RS |
975 | } |
976 | \f | |
977 | /* Handle errors that are not handled at inner levels | |
978 | by printing an error message and returning to the editor command loop. */ | |
604ccd1d | 979 | |
284f4730 JB |
980 | Lisp_Object |
981 | cmd_error (data) | |
982 | Lisp_Object data; | |
a1341f75 | 983 | { |
a9f16aa9 | 984 | Lisp_Object old_level, old_length; |
e881d8b2 RS |
985 | char macroerror[50]; |
986 | ||
987 | if (!NILP (executing_macro)) | |
988 | { | |
989 | if (executing_macro_iterations == 1) | |
990 | sprintf (macroerror, "After 1 kbd macro iteration: "); | |
991 | else | |
992 | sprintf (macroerror, "After %d kbd macro iterations: ", | |
993 | executing_macro_iterations); | |
994 | } | |
995 | else | |
996 | *macroerror = 0; | |
a9f16aa9 | 997 | |
a1341f75 RS |
998 | Vstandard_output = Qt; |
999 | Vstandard_input = Qt; | |
1000 | Vexecuting_macro = Qnil; | |
9f58e89e | 1001 | executing_macro = Qnil; |
d8bcf58e | 1002 | current_kboard->Vprefix_arg = Qnil; |
75045dcb | 1003 | current_kboard->Vlast_prefix_arg = Qnil; |
df0f2ba1 | 1004 | cancel_echoing (); |
a9f16aa9 KH |
1005 | |
1006 | /* Avoid unquittable loop if data contains a circular list. */ | |
1007 | old_level = Vprint_level; | |
1008 | old_length = Vprint_length; | |
0c04a67e RS |
1009 | XSETFASTINT (Vprint_level, 10); |
1010 | XSETFASTINT (Vprint_length, 10); | |
e881d8b2 | 1011 | cmd_error_internal (data, macroerror); |
a9f16aa9 KH |
1012 | Vprint_level = old_level; |
1013 | Vprint_length = old_length; | |
a1341f75 RS |
1014 | |
1015 | Vquit_flag = Qnil; | |
1016 | ||
1017 | Vinhibit_quit = Qnil; | |
c5fdd383 | 1018 | #ifdef MULTI_KBOARD |
1e8bd3da | 1019 | any_kboard_state (); |
ff4b06d3 | 1020 | #endif |
a1341f75 RS |
1021 | |
1022 | return make_number (0); | |
1023 | } | |
1024 | ||
301738ed RS |
1025 | /* Take actions on handling an error. DATA is the data that describes |
1026 | the error. | |
1027 | ||
1028 | CONTEXT is a C-string containing ASCII characters only which | |
1029 | describes the context in which the error happened. If we need to | |
1030 | generalize CONTEXT to allow multibyte characters, make it a Lisp | |
1031 | string. */ | |
1032 | ||
07a59269 | 1033 | void |
a1341f75 RS |
1034 | cmd_error_internal (data, context) |
1035 | Lisp_Object data; | |
1036 | char *context; | |
284f4730 | 1037 | { |
284f4730 | 1038 | Lisp_Object stream; |
7ee32cda | 1039 | int kill_emacs_p = 0; |
788f89eb | 1040 | struct frame *sf = SELECTED_FRAME (); |
284f4730 JB |
1041 | |
1042 | Vquit_flag = Qnil; | |
1043 | Vinhibit_quit = Qt; | |
985f9f66 | 1044 | clear_message (1, 0); |
284f4730 | 1045 | |
ff11dfa1 | 1046 | /* If the window system or terminal frame hasn't been initialized |
284f4730 JB |
1047 | yet, or we're not interactive, it's best to dump this message out |
1048 | to stderr and exit. */ | |
788f89eb | 1049 | if (!sf->glyphs_initialized_p |
7ee32cda GM |
1050 | /* This is the case of the frame dumped with Emacs, when we're |
1051 | running under a window system. */ | |
1052 | || (!NILP (Vwindow_system) | |
1053 | && !inhibit_window_system | |
788f89eb | 1054 | && FRAME_TERMCAP_P (sf)) |
284f4730 | 1055 | || noninteractive) |
7ee32cda GM |
1056 | { |
1057 | stream = Qexternal_debugging_output; | |
1058 | kill_emacs_p = 1; | |
1059 | } | |
284f4730 JB |
1060 | else |
1061 | { | |
1062 | Fdiscard_input (); | |
1063 | bitch_at_user (); | |
1064 | stream = Qt; | |
1065 | } | |
1066 | ||
a1341f75 RS |
1067 | if (context != 0) |
1068 | write_string_1 (context, -1, stream); | |
1069 | ||
22a51344 | 1070 | print_error_message (data, stream); |
284f4730 | 1071 | |
ff11dfa1 | 1072 | /* If the window system or terminal frame hasn't been initialized |
284f4730 | 1073 | yet, or we're in -batch mode, this error should cause Emacs to exit. */ |
7ee32cda | 1074 | if (kill_emacs_p) |
284f4730 JB |
1075 | { |
1076 | Fterpri (stream); | |
1077 | Fkill_emacs (make_number (-1)); | |
1078 | } | |
284f4730 JB |
1079 | } |
1080 | \f | |
1081 | Lisp_Object command_loop_1 (); | |
1082 | Lisp_Object command_loop_2 (); | |
1083 | Lisp_Object top_level_1 (); | |
1084 | ||
1085 | /* Entry to editor-command-loop. | |
1086 | This level has the catches for exiting/returning to editor command loop. | |
1087 | It returns nil to exit recursive edit, t to abort it. */ | |
1088 | ||
1089 | Lisp_Object | |
1090 | command_loop () | |
1091 | { | |
1092 | if (command_loop_level > 0 || minibuf_level > 0) | |
1093 | { | |
07ba902e RS |
1094 | Lisp_Object val; |
1095 | val = internal_catch (Qexit, command_loop_2, Qnil); | |
68c46464 RS |
1096 | executing_macro = Qnil; |
1097 | return val; | |
284f4730 JB |
1098 | } |
1099 | else | |
1100 | while (1) | |
1101 | { | |
1102 | internal_catch (Qtop_level, top_level_1, Qnil); | |
1103 | internal_catch (Qtop_level, command_loop_2, Qnil); | |
68c46464 | 1104 | executing_macro = Qnil; |
df0f2ba1 | 1105 | |
284f4730 JB |
1106 | /* End of file in -batch run causes exit here. */ |
1107 | if (noninteractive) | |
1108 | Fkill_emacs (Qt); | |
1109 | } | |
1110 | } | |
1111 | ||
1112 | /* Here we catch errors in execution of commands within the | |
1113 | editing loop, and reenter the editing loop. | |
1114 | When there is an error, cmd_error runs and returns a non-nil | |
1115 | value to us. A value of nil means that cmd_loop_1 itself | |
1116 | returned due to end of file (or end of kbd macro). */ | |
1117 | ||
1118 | Lisp_Object | |
1119 | command_loop_2 () | |
1120 | { | |
1121 | register Lisp_Object val; | |
1122 | ||
1123 | do | |
1124 | val = internal_condition_case (command_loop_1, Qerror, cmd_error); | |
1125 | while (!NILP (val)); | |
1126 | ||
1127 | return Qnil; | |
1128 | } | |
1129 | ||
1130 | Lisp_Object | |
1131 | top_level_2 () | |
1132 | { | |
1133 | return Feval (Vtop_level); | |
1134 | } | |
1135 | ||
1136 | Lisp_Object | |
1137 | top_level_1 () | |
1138 | { | |
1139 | /* On entry to the outer level, run the startup file */ | |
1140 | if (!NILP (Vtop_level)) | |
1141 | internal_condition_case (top_level_2, Qerror, cmd_error); | |
1142 | else if (!NILP (Vpurify_flag)) | |
1143 | message ("Bare impure Emacs (standard Lisp code not loaded)"); | |
1144 | else | |
1145 | message ("Bare Emacs (standard Lisp code not loaded)"); | |
1146 | return Qnil; | |
1147 | } | |
1148 | ||
1149 | DEFUN ("top-level", Ftop_level, Stop_level, 0, 0, "", | |
1150 | "Exit all recursive editing levels.") | |
1151 | () | |
1152 | { | |
1153 | Fthrow (Qtop_level, Qnil); | |
1154 | } | |
1155 | ||
1156 | DEFUN ("exit-recursive-edit", Fexit_recursive_edit, Sexit_recursive_edit, 0, 0, "", | |
1157 | "Exit from the innermost recursive edit or minibuffer.") | |
1158 | () | |
1159 | { | |
1160 | if (command_loop_level > 0 || minibuf_level > 0) | |
1161 | Fthrow (Qexit, Qnil); | |
1162 | ||
1163 | error ("No recursive edit is in progress"); | |
1164 | } | |
1165 | ||
1166 | DEFUN ("abort-recursive-edit", Fabort_recursive_edit, Sabort_recursive_edit, 0, 0, "", | |
1167 | "Abort the command that requested this recursive edit or minibuffer input.") | |
1168 | () | |
1169 | { | |
1170 | if (command_loop_level > 0 || minibuf_level > 0) | |
1171 | Fthrow (Qexit, Qt); | |
1172 | ||
1173 | error ("No recursive edit is in progress"); | |
1174 | } | |
1175 | \f | |
1176 | /* This is the actual command reading loop, | |
1177 | sans error-handling encapsulation. */ | |
1178 | ||
1179 | Lisp_Object Fcommand_execute (); | |
1180 | static int read_key_sequence (); | |
68f297c5 | 1181 | void safe_run_hooks (); |
284f4730 JB |
1182 | |
1183 | Lisp_Object | |
1184 | command_loop_1 () | |
1185 | { | |
48e416d4 | 1186 | Lisp_Object cmd, tem; |
37cd9f30 | 1187 | int lose, lose2; |
284f4730 JB |
1188 | int nonundocount; |
1189 | Lisp_Object keybuf[30]; | |
1190 | int i; | |
1191 | int no_redisplay; | |
1192 | int no_direct; | |
86e5706b RS |
1193 | int prev_modiff; |
1194 | struct buffer *prev_buffer; | |
c5fdd383 | 1195 | #ifdef MULTI_KBOARD |
1e8bd3da | 1196 | int was_locked = single_kboard; |
bded54dd | 1197 | #endif |
284f4730 | 1198 | |
d9b641bb | 1199 | current_kboard->Vprefix_arg = Qnil; |
75045dcb | 1200 | current_kboard->Vlast_prefix_arg = Qnil; |
86e5706b | 1201 | Vdeactivate_mark = Qnil; |
284f4730 | 1202 | waiting_for_input = 0; |
df0f2ba1 | 1203 | cancel_echoing (); |
284f4730 | 1204 | |
284f4730 JB |
1205 | nonundocount = 0; |
1206 | no_redisplay = 0; | |
1207 | this_command_key_count = 0; | |
6321824f | 1208 | this_single_command_key_start = 0; |
284f4730 | 1209 | |
a612e298 RS |
1210 | /* Make sure this hook runs after commands that get errors and |
1211 | throw to top level. */ | |
a98ea3f9 RS |
1212 | /* Note that the value cell will never directly contain nil |
1213 | if the symbol is a local variable. */ | |
e98a93eb | 1214 | if (!NILP (Vpost_command_hook) && !NILP (Vrun_hooks)) |
a98ea3f9 | 1215 | safe_run_hooks (Qpost_command_hook); |
a612e298 | 1216 | |
8f12e41d GM |
1217 | /* If displaying a message, resize the echo area window to fit |
1218 | that message's size exactly. */ | |
1219 | if (!NILP (echo_area_buffer[0])) | |
1220 | resize_echo_area_axactly (); | |
1221 | ||
8a792f3a RS |
1222 | if (!NILP (Vdeferred_action_list)) |
1223 | call0 (Vdeferred_action_function); | |
1224 | ||
e98a93eb | 1225 | if (!NILP (Vpost_command_idle_hook) && !NILP (Vrun_hooks)) |
59aadc81 RS |
1226 | { |
1227 | if (NILP (Vunread_command_events) | |
7d18f9ae RS |
1228 | && NILP (Vunread_input_method_events) |
1229 | && NILP (Vunread_post_input_method_events) | |
59aadc81 | 1230 | && NILP (Vexecuting_macro) |
41365083 | 1231 | && !NILP (sit_for (0, post_command_idle_delay, 0, 1, 1))) |
59aadc81 RS |
1232 | safe_run_hooks (Qpost_command_idle_hook); |
1233 | } | |
1234 | ||
51d5a2c9 | 1235 | /* Do this after running Vpost_command_hook, for consistency. */ |
d5eecefb RS |
1236 | current_kboard->Vlast_command = Vthis_command; |
1237 | current_kboard->Vreal_last_command = real_this_command; | |
51d5a2c9 | 1238 | |
284f4730 JB |
1239 | while (1) |
1240 | { | |
788f89eb | 1241 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 KH |
1242 | Fkill_emacs (Qnil); |
1243 | ||
284f4730 JB |
1244 | /* Make sure the current window's buffer is selected. */ |
1245 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
1246 | set_buffer_internal (XBUFFER (XWINDOW (selected_window)->buffer)); | |
1247 | ||
1248 | /* Display any malloc warning that just came out. Use while because | |
1249 | displaying one warning can cause another. */ | |
1250 | ||
1251 | while (pending_malloc_warning) | |
1252 | display_malloc_warning (); | |
1253 | ||
1254 | no_direct = 0; | |
1255 | ||
86e5706b RS |
1256 | Vdeactivate_mark = Qnil; |
1257 | ||
284f4730 | 1258 | /* If minibuffer on and echo area in use, |
eb8c3be9 | 1259 | wait 2 sec and redraw minibuffer. */ |
284f4730 | 1260 | |
7ee32cda | 1261 | if (minibuf_level |
985f9f66 | 1262 | && !NILP (echo_area_buffer[0]) |
93127526 | 1263 | && EQ (minibuf_window, echo_area_window)) |
284f4730 | 1264 | { |
f1bed6d8 RS |
1265 | /* Bind inhibit-quit to t so that C-g gets read in |
1266 | rather than quitting back to the minibuffer. */ | |
1267 | int count = specpdl_ptr - specpdl; | |
1268 | specbind (Qinhibit_quit, Qt); | |
f1bed6d8 | 1269 | |
db08707d | 1270 | Fsit_for (make_number (2), Qnil, Qnil); |
e6aa7813 | 1271 | /* Clear the echo area. */ |
301738ed | 1272 | message2 (0, 0, 0); |
cdb9d665 | 1273 | safe_run_hooks (Qecho_area_clear_hook); |
e6aa7813 | 1274 | |
db08707d RS |
1275 | unbind_to (count, Qnil); |
1276 | ||
e6aa7813 | 1277 | /* If a C-g came in before, treat it as input now. */ |
284f4730 JB |
1278 | if (!NILP (Vquit_flag)) |
1279 | { | |
1280 | Vquit_flag = Qnil; | |
24597608 | 1281 | Vunread_command_events = Fcons (make_number (quit_char), Qnil); |
284f4730 JB |
1282 | } |
1283 | } | |
1284 | ||
1285 | #ifdef C_ALLOCA | |
ff4b06d3 | 1286 | alloca (0); /* Cause a garbage collection now */ |
284f4730 JB |
1287 | /* Since we can free the most stuff here. */ |
1288 | #endif /* C_ALLOCA */ | |
1289 | ||
8f805655 | 1290 | #if 0 |
8f805655 JB |
1291 | /* Select the frame that the last event came from. Usually, |
1292 | switch-frame events will take care of this, but if some lisp | |
1293 | code swallows a switch-frame event, we'll fix things up here. | |
1294 | Is this a good idea? */ | |
8c18cbfb | 1295 | if (FRAMEP (internal_last_event_frame) |
788f89eb | 1296 | && !EQ (internal_last_event_frame, selected_frame)) |
3c370943 | 1297 | Fselect_frame (internal_last_event_frame, Qnil); |
284f4730 | 1298 | #endif |
48e416d4 RS |
1299 | /* If it has changed current-menubar from previous value, |
1300 | really recompute the menubar from the value. */ | |
a646e520 RS |
1301 | if (! NILP (Vlucid_menu_bar_dirty_flag) |
1302 | && !NILP (Ffboundp (Qrecompute_lucid_menubar))) | |
48e416d4 RS |
1303 | call0 (Qrecompute_lucid_menubar); |
1304 | ||
71918b75 RS |
1305 | before_command_key_count = this_command_key_count; |
1306 | before_command_echo_length = echo_length (); | |
1307 | ||
d5eecefb RS |
1308 | Vthis_command = Qnil; |
1309 | real_this_command = Qnil; | |
d7437ef6 | 1310 | |
8f805655 | 1311 | /* Read next key sequence; i gets its length. */ |
ce98e608 | 1312 | i = read_key_sequence (keybuf, sizeof keybuf / sizeof keybuf[0], |
f571ae0d | 1313 | Qnil, 0, 1, 1); |
8f805655 | 1314 | |
6fac1409 | 1315 | /* A filter may have run while we were reading the input. */ |
788f89eb | 1316 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 | 1317 | Fkill_emacs (Qnil); |
6fac1409 RS |
1318 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) |
1319 | set_buffer_internal (XBUFFER (XWINDOW (selected_window)->buffer)); | |
1320 | ||
8f805655 JB |
1321 | ++num_input_keys; |
1322 | ||
284f4730 JB |
1323 | /* Now we have read a key sequence of length I, |
1324 | or else I is 0 and we found end of file. */ | |
1325 | ||
1326 | if (i == 0) /* End of file -- happens only in */ | |
1327 | return Qnil; /* a kbd macro, at the end. */ | |
dcc408a0 RS |
1328 | /* -1 means read_key_sequence got a menu that was rejected. |
1329 | Just loop around and read another command. */ | |
1330 | if (i == -1) | |
1331 | { | |
1332 | cancel_echoing (); | |
1333 | this_command_key_count = 0; | |
6321824f | 1334 | this_single_command_key_start = 0; |
ff4b06d3 | 1335 | goto finalize; |
dcc408a0 | 1336 | } |
284f4730 | 1337 | |
284f4730 JB |
1338 | last_command_char = keybuf[i - 1]; |
1339 | ||
75c0b143 RS |
1340 | /* If the previous command tried to force a specific window-start, |
1341 | forget about that, in case this command moves point far away | |
c422836d KH |
1342 | from that position. But also throw away beg_unchanged and |
1343 | end_unchanged information in that case, so that redisplay will | |
1344 | update the whole window properly. */ | |
1345 | if (!NILP (XWINDOW (selected_window)->force_start)) | |
1346 | { | |
9351ebd0 | 1347 | struct buffer *b; |
c422836d | 1348 | XWINDOW (selected_window)->force_start = Qnil; |
9351ebd0 GM |
1349 | b = XBUFFER (XWINDOW (selected_window)->buffer); |
1350 | BUF_BEG_UNCHANGED (b) = BUF_END_UNCHANGED (b) = 0; | |
c422836d | 1351 | } |
75c0b143 | 1352 | |
284f4730 JB |
1353 | cmd = read_key_sequence_cmd; |
1354 | if (!NILP (Vexecuting_macro)) | |
1355 | { | |
1356 | if (!NILP (Vquit_flag)) | |
1357 | { | |
1358 | Vexecuting_macro = Qt; | |
1359 | QUIT; /* Make some noise. */ | |
1360 | /* Will return since macro now empty. */ | |
1361 | } | |
1362 | } | |
1363 | ||
1364 | /* Do redisplay processing after this command except in special | |
40932d1a RS |
1365 | cases identified below that set no_redisplay to 1. |
1366 | (actually, there's currently no way to prevent the redisplay, | |
1367 | and no_redisplay is ignored. | |
beecf6a1 | 1368 | Perhaps someday we will really implement it.) */ |
284f4730 JB |
1369 | no_redisplay = 0; |
1370 | ||
86e5706b RS |
1371 | prev_buffer = current_buffer; |
1372 | prev_modiff = MODIFF; | |
8746da95 | 1373 | last_point_position = PT; |
18cd2eeb | 1374 | XSETBUFFER (last_point_position_buffer, prev_buffer); |
86e5706b | 1375 | |
284f4730 JB |
1376 | /* Execute the command. */ |
1377 | ||
d5eecefb RS |
1378 | Vthis_command = cmd; |
1379 | real_this_command = cmd; | |
a98ea3f9 RS |
1380 | /* Note that the value cell will never directly contain nil |
1381 | if the symbol is a local variable. */ | |
e98a93eb | 1382 | if (!NILP (Vpre_command_hook) && !NILP (Vrun_hooks)) |
a98ea3f9 | 1383 | safe_run_hooks (Qpre_command_hook); |
75045dcb | 1384 | |
d5eecefb | 1385 | if (NILP (Vthis_command)) |
284f4730 JB |
1386 | { |
1387 | /* nil means key is undefined. */ | |
1388 | bitch_at_user (); | |
c5fdd383 | 1389 | current_kboard->defining_kbd_macro = Qnil; |
284f4730 | 1390 | update_mode_lines = 1; |
d8bcf58e | 1391 | current_kboard->Vprefix_arg = Qnil; |
284f4730 JB |
1392 | } |
1393 | else | |
1394 | { | |
d8bcf58e | 1395 | if (NILP (current_kboard->Vprefix_arg) && ! no_direct) |
284f4730 | 1396 | { |
75045dcb RS |
1397 | /* In case we jump to directly_done. */ |
1398 | Vcurrent_prefix_arg = current_kboard->Vprefix_arg; | |
1399 | ||
284f4730 JB |
1400 | /* Recognize some common commands in common situations and |
1401 | do them directly. */ | |
d5eecefb | 1402 | if (EQ (Vthis_command, Qforward_char) && PT < ZV) |
284f4730 | 1403 | { |
51ad8a68 | 1404 | struct Lisp_Char_Table *dp |
284f4730 | 1405 | = window_display_table (XWINDOW (selected_window)); |
aaf35234 | 1406 | lose = FETCH_CHAR (PT_BYTE); |
8458ede6 | 1407 | SET_PT (PT + 1); |
0f7a8fee | 1408 | if ((dp |
82ba47d7 | 1409 | ? (VECTORP (DISP_CHAR_VECTOR (dp, lose)) |
9a5540db RS |
1410 | ? XVECTOR (DISP_CHAR_VECTOR (dp, lose))->size == 1 |
1411 | : (NILP (DISP_CHAR_VECTOR (dp, lose)) | |
1412 | && (lose >= 0x20 && lose < 0x7f))) | |
0f7a8fee | 1413 | : (lose >= 0x20 && lose < 0x7f)) |
37cd9f30 KH |
1414 | /* To extract the case of continuation on |
1415 | wide-column characters. */ | |
8458ede6 | 1416 | && (WIDTH_BY_CHAR_HEAD (FETCH_BYTE (PT_BYTE)) == 1) |
284f4730 JB |
1417 | && (XFASTINT (XWINDOW (selected_window)->last_modified) |
1418 | >= MODIFF) | |
598ba4c7 RS |
1419 | && (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1420 | >= OVERLAY_MODIFF) | |
284f4730 | 1421 | && (XFASTINT (XWINDOW (selected_window)->last_point) |
8001d352 | 1422 | == PT - 1) |
284f4730 JB |
1423 | && !windows_or_buffers_changed |
1424 | && EQ (current_buffer->selective_display, Qnil) | |
1425 | && !detect_input_pending () | |
962ae636 | 1426 | && NILP (XWINDOW (selected_window)->column_number_displayed) |
284f4730 JB |
1427 | && NILP (Vexecuting_macro)) |
1428 | no_redisplay = direct_output_forward_char (1); | |
1429 | goto directly_done; | |
1430 | } | |
d5eecefb | 1431 | else if (EQ (Vthis_command, Qbackward_char) && PT > BEGV) |
284f4730 | 1432 | { |
51ad8a68 | 1433 | struct Lisp_Char_Table *dp |
284f4730 | 1434 | = window_display_table (XWINDOW (selected_window)); |
8458ede6 | 1435 | SET_PT (PT - 1); |
aaf35234 | 1436 | lose = FETCH_CHAR (PT_BYTE); |
0f7a8fee | 1437 | if ((dp |
ca873d73 | 1438 | ? (VECTORP (DISP_CHAR_VECTOR (dp, lose)) |
9a5540db RS |
1439 | ? XVECTOR (DISP_CHAR_VECTOR (dp, lose))->size == 1 |
1440 | : (NILP (DISP_CHAR_VECTOR (dp, lose)) | |
1441 | && (lose >= 0x20 && lose < 0x7f))) | |
0f7a8fee | 1442 | : (lose >= 0x20 && lose < 0x7f)) |
284f4730 JB |
1443 | && (XFASTINT (XWINDOW (selected_window)->last_modified) |
1444 | >= MODIFF) | |
598ba4c7 RS |
1445 | && (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1446 | >= OVERLAY_MODIFF) | |
284f4730 | 1447 | && (XFASTINT (XWINDOW (selected_window)->last_point) |
8001d352 | 1448 | == PT + 1) |
284f4730 JB |
1449 | && !windows_or_buffers_changed |
1450 | && EQ (current_buffer->selective_display, Qnil) | |
1451 | && !detect_input_pending () | |
962ae636 | 1452 | && NILP (XWINDOW (selected_window)->column_number_displayed) |
284f4730 JB |
1453 | && NILP (Vexecuting_macro)) |
1454 | no_redisplay = direct_output_forward_char (-1); | |
1455 | goto directly_done; | |
1456 | } | |
d5eecefb | 1457 | else if (EQ (Vthis_command, Qself_insert_command) |
284f4730 | 1458 | /* Try this optimization only on ascii keystrokes. */ |
8c18cbfb | 1459 | && INTEGERP (last_command_char)) |
284f4730 | 1460 | { |
89599794 | 1461 | unsigned int c = XINT (last_command_char); |
fc9cce4e | 1462 | int value; |
fc9cce4e RS |
1463 | if (NILP (Vexecuting_macro) |
1464 | && !EQ (minibuf_window, selected_window)) | |
284f4730 JB |
1465 | { |
1466 | if (!nonundocount || nonundocount >= 20) | |
1467 | { | |
1468 | Fundo_boundary (); | |
1469 | nonundocount = 0; | |
1470 | } | |
1471 | nonundocount++; | |
1472 | } | |
7ee32cda | 1473 | |
fc9cce4e RS |
1474 | lose = ((XFASTINT (XWINDOW (selected_window)->last_modified) |
1475 | < MODIFF) | |
598ba4c7 RS |
1476 | || (XFASTINT (XWINDOW (selected_window)->last_overlay_modified) |
1477 | < OVERLAY_MODIFF) | |
fc9cce4e RS |
1478 | || (XFASTINT (XWINDOW (selected_window)->last_point) |
1479 | != PT) | |
4c61f38e | 1480 | || MODIFF <= SAVE_MODIFF |
fc9cce4e RS |
1481 | || windows_or_buffers_changed |
1482 | || !EQ (current_buffer->selective_display, Qnil) | |
1483 | || detect_input_pending () | |
962ae636 | 1484 | || !NILP (XWINDOW (selected_window)->column_number_displayed) |
fc9cce4e | 1485 | || !NILP (Vexecuting_macro)); |
7ee32cda | 1486 | |
fc9cce4e | 1487 | value = internal_self_insert (c, 0); |
7ee32cda | 1488 | |
fc9cce4e RS |
1489 | if (value == 2) |
1490 | nonundocount = 0; | |
1491 | ||
7ee32cda GM |
1492 | /* VALUE == 1 when AFTER-CHANGE functions are |
1493 | installed which is the case most of the time | |
1494 | because FONT-LOCK installs one. */ | |
1495 | if (!lose && !value) | |
1496 | no_redisplay = direct_output_for_insert (c); | |
284f4730 JB |
1497 | goto directly_done; |
1498 | } | |
1499 | } | |
1500 | ||
1501 | /* Here for a command that isn't executed directly */ | |
1502 | ||
7ee32cda GM |
1503 | #ifdef HAVE_X_WINDOWS |
1504 | if (display_busy_cursor_p) | |
1505 | { | |
1506 | if (inhibit_busy_cursor != 2) | |
1507 | inhibit_busy_cursor = 0; | |
1508 | if (!inhibit_busy_cursor) | |
1509 | Fx_show_busy_cursor (); | |
1510 | } | |
1511 | #endif | |
1512 | ||
284f4730 | 1513 | nonundocount = 0; |
d8bcf58e | 1514 | if (NILP (current_kboard->Vprefix_arg)) |
284f4730 | 1515 | Fundo_boundary (); |
d5eecefb | 1516 | Fcommand_execute (Vthis_command, Qnil, Qnil, Qnil); |
284f4730 | 1517 | } |
a764a753 | 1518 | directly_done: ; |
75045dcb | 1519 | current_kboard->Vlast_prefix_arg = Vcurrent_prefix_arg; |
284f4730 | 1520 | |
84ee6048 RS |
1521 | /* Note that the value cell will never directly contain nil |
1522 | if the symbol is a local variable. */ | |
1523 | if (!NILP (Vpost_command_hook) && !NILP (Vrun_hooks)) | |
1524 | safe_run_hooks (Qpost_command_hook); | |
1525 | ||
8f12e41d GM |
1526 | /* If displaying a message, resize the echo area window to fit |
1527 | that message's size exactly. */ | |
1528 | if (!NILP (echo_area_buffer[0])) | |
1529 | resize_echo_area_axactly (); | |
1530 | ||
84ee6048 RS |
1531 | if (!NILP (Vdeferred_action_list)) |
1532 | safe_run_hooks (Qdeferred_action_function); | |
1533 | ||
1534 | if (!NILP (Vpost_command_idle_hook) && !NILP (Vrun_hooks)) | |
1535 | { | |
1536 | if (NILP (Vunread_command_events) | |
7d18f9ae RS |
1537 | && NILP (Vunread_input_method_events) |
1538 | && NILP (Vunread_post_input_method_events) | |
84ee6048 RS |
1539 | && NILP (Vexecuting_macro) |
1540 | && !NILP (sit_for (0, post_command_idle_delay, 0, 1, 1))) | |
1541 | safe_run_hooks (Qpost_command_idle_hook); | |
1542 | } | |
1543 | ||
284f4730 | 1544 | /* If there is a prefix argument, |
6c7178b9 KH |
1545 | 1) We don't want Vlast_command to be ``universal-argument'' |
1546 | (that would be dumb), so don't set Vlast_command, | |
284f4730 JB |
1547 | 2) we want to leave echoing on so that the prefix will be |
1548 | echoed as part of this key sequence, so don't call | |
1549 | cancel_echoing, and | |
1550 | 3) we want to leave this_command_key_count non-zero, so that | |
1551 | read_char will realize that it is re-reading a character, and | |
217258d5 KH |
1552 | not echo it a second time. |
1553 | ||
1554 | If the command didn't actually create a prefix arg, | |
1555 | but is merely a frame event that is transparent to prefix args, | |
1556 | then the above doesn't apply. */ | |
1557 | if (NILP (current_kboard->Vprefix_arg) || CONSP (last_command_char)) | |
284f4730 | 1558 | { |
d5eecefb RS |
1559 | current_kboard->Vlast_command = Vthis_command; |
1560 | current_kboard->Vreal_last_command = real_this_command; | |
284f4730 JB |
1561 | cancel_echoing (); |
1562 | this_command_key_count = 0; | |
6321824f | 1563 | this_single_command_key_start = 0; |
284f4730 | 1564 | } |
86e5706b | 1565 | |
88ce066e | 1566 | if (!NILP (current_buffer->mark_active) && !NILP (Vrun_hooks)) |
86e5706b RS |
1567 | { |
1568 | if (!NILP (Vdeactivate_mark) && !NILP (Vtransient_mark_mode)) | |
1569 | { | |
1570 | current_buffer->mark_active = Qnil; | |
1571 | call1 (Vrun_hooks, intern ("deactivate-mark-hook")); | |
1572 | } | |
1573 | else if (current_buffer != prev_buffer || MODIFF != prev_modiff) | |
1574 | call1 (Vrun_hooks, intern ("activate-mark-hook")); | |
1575 | } | |
ff4b06d3 KH |
1576 | |
1577 | finalize: | |
1578 | /* Install chars successfully executed in kbd macro. */ | |
1579 | ||
d8bcf58e KH |
1580 | if (!NILP (current_kboard->defining_kbd_macro) |
1581 | && NILP (current_kboard->Vprefix_arg)) | |
ff4b06d3 KH |
1582 | finalize_kbd_macro_chars (); |
1583 | ||
c5fdd383 | 1584 | #ifdef MULTI_KBOARD |
604ccd1d | 1585 | if (!was_locked) |
1e8bd3da | 1586 | any_kboard_state (); |
ff4b06d3 | 1587 | #endif |
284f4730 JB |
1588 | } |
1589 | } | |
1c9784c9 | 1590 | |
0bc3db2b RS |
1591 | /* Subroutine for safe_run_hooks: run the hook HOOK. */ |
1592 | ||
1593 | static Lisp_Object | |
1594 | safe_run_hooks_1 (hook) | |
1595 | Lisp_Object hook; | |
1596 | { | |
1597 | return call1 (Vrun_hooks, Vinhibit_quit); | |
1598 | } | |
1599 | ||
1600 | /* Subroutine for safe_run_hooks: handle an error by clearing out the hook. */ | |
1601 | ||
1602 | static Lisp_Object | |
1603 | safe_run_hooks_error (data) | |
1604 | Lisp_Object data; | |
1605 | { | |
1606 | Fset (Vinhibit_quit, Qnil); | |
1607 | } | |
1608 | ||
1c9784c9 KH |
1609 | /* If we get an error while running the hook, cause the hook variable |
1610 | to be nil. Also inhibit quits, so that C-g won't cause the hook | |
1611 | to mysteriously evaporate. */ | |
0bc3db2b | 1612 | |
68f297c5 | 1613 | void |
1c9784c9 | 1614 | safe_run_hooks (hook) |
a98ea3f9 | 1615 | Lisp_Object hook; |
1c9784c9 | 1616 | { |
68553292 | 1617 | Lisp_Object value; |
1c9784c9 | 1618 | int count = specpdl_ptr - specpdl; |
0bc3db2b RS |
1619 | specbind (Qinhibit_quit, hook); |
1620 | ||
e702932d | 1621 | internal_condition_case (safe_run_hooks_1, Qt, safe_run_hooks_error); |
1c9784c9 KH |
1622 | |
1623 | unbind_to (count, Qnil); | |
1624 | } | |
284f4730 JB |
1625 | \f |
1626 | /* Number of seconds between polling for input. */ | |
1627 | int polling_period; | |
1628 | ||
eb8c3be9 | 1629 | /* Nonzero means polling for input is temporarily suppressed. */ |
284f4730 JB |
1630 | int poll_suppress_count; |
1631 | ||
36922b18 | 1632 | /* Nonzero if polling_for_input is actually being used. */ |
284f4730 JB |
1633 | int polling_for_input; |
1634 | ||
36922b18 RS |
1635 | #ifdef POLL_FOR_INPUT |
1636 | ||
284f4730 JB |
1637 | /* Handle an alarm once each second and read pending input |
1638 | so as to handle a C-g if it comces in. */ | |
1639 | ||
1640 | SIGTYPE | |
91c049d4 RS |
1641 | input_poll_signal (signalnum) /* If we don't have an argument, */ |
1642 | int signalnum; /* some compilers complain in signal calls. */ | |
284f4730 | 1643 | { |
87dd9b9b RS |
1644 | /* This causes the call to start_polling at the end |
1645 | to do its job. It also arranges for a quit or error | |
1646 | from within read_avail_input to resume polling. */ | |
1647 | poll_suppress_count++; | |
9ac0d9e0 JB |
1648 | if (interrupt_input_blocked == 0 |
1649 | && !waiting_for_input) | |
1650 | read_avail_input (0); | |
87dd9b9b RS |
1651 | /* Turn on the SIGALRM handler and request another alarm. */ |
1652 | start_polling (); | |
284f4730 JB |
1653 | } |
1654 | ||
1655 | #endif | |
1656 | ||
1657 | /* Begin signals to poll for input, if they are appropriate. | |
1658 | This function is called unconditionally from various places. */ | |
1659 | ||
07a59269 | 1660 | void |
284f4730 JB |
1661 | start_polling () |
1662 | { | |
1663 | #ifdef POLL_FOR_INPUT | |
34f04431 | 1664 | if (read_socket_hook && !interrupt_input) |
284f4730 JB |
1665 | { |
1666 | poll_suppress_count--; | |
1667 | if (poll_suppress_count == 0) | |
1668 | { | |
1669 | signal (SIGALRM, input_poll_signal); | |
1670 | polling_for_input = 1; | |
1671 | alarm (polling_period); | |
1672 | } | |
1673 | } | |
1674 | #endif | |
1675 | } | |
1676 | ||
1d3195db RS |
1677 | /* Nonzero if we are using polling to handle input asynchronously. */ |
1678 | ||
1679 | int | |
1680 | input_polling_used () | |
1681 | { | |
1682 | #ifdef POLL_FOR_INPUT | |
1683 | return read_socket_hook && !interrupt_input; | |
1684 | #else | |
1685 | return 0; | |
1686 | #endif | |
1687 | } | |
1688 | ||
284f4730 JB |
1689 | /* Turn off polling. */ |
1690 | ||
07a59269 | 1691 | void |
284f4730 JB |
1692 | stop_polling () |
1693 | { | |
1694 | #ifdef POLL_FOR_INPUT | |
34f04431 | 1695 | if (read_socket_hook && !interrupt_input) |
284f4730 JB |
1696 | { |
1697 | if (poll_suppress_count == 0) | |
1698 | { | |
1699 | polling_for_input = 0; | |
1700 | alarm (0); | |
1701 | } | |
1702 | poll_suppress_count++; | |
1703 | } | |
1704 | #endif | |
1705 | } | |
fe8aeef3 RS |
1706 | |
1707 | /* Set the value of poll_suppress_count to COUNT | |
1708 | and start or stop polling accordingly. */ | |
1709 | ||
1710 | void | |
1711 | set_poll_suppress_count (count) | |
1712 | int count; | |
1713 | { | |
1714 | #ifdef POLL_FOR_INPUT | |
1715 | if (count == 0 && poll_suppress_count != 0) | |
1716 | { | |
1717 | poll_suppress_count = 1; | |
1718 | start_polling (); | |
1719 | } | |
1720 | else if (count != 0 && poll_suppress_count == 0) | |
1721 | { | |
1722 | stop_polling (); | |
1723 | } | |
1724 | poll_suppress_count = count; | |
1725 | #endif | |
1726 | } | |
f4eef8b4 | 1727 | |
d0a57728 RS |
1728 | /* Bind polling_period to a value at least N. |
1729 | But don't decrease it. */ | |
1730 | ||
07a59269 | 1731 | void |
f4eef8b4 RS |
1732 | bind_polling_period (n) |
1733 | int n; | |
1734 | { | |
1735 | #ifdef POLL_FOR_INPUT | |
d0a57728 RS |
1736 | int new = polling_period; |
1737 | ||
1738 | if (n > new) | |
1739 | new = n; | |
1740 | ||
f4eef8b4 | 1741 | stop_polling (); |
d0a57728 RS |
1742 | specbind (Qpolling_period, make_number (new)); |
1743 | /* Start a new alarm with the new period. */ | |
f4eef8b4 RS |
1744 | start_polling (); |
1745 | #endif | |
1746 | } | |
284f4730 | 1747 | \f |
6da3dd3a RS |
1748 | /* Apply the control modifier to CHARACTER. */ |
1749 | ||
faf5e407 JB |
1750 | int |
1751 | make_ctrl_char (c) | |
1752 | int c; | |
1753 | { | |
d205953b JB |
1754 | /* Save the upper bits here. */ |
1755 | int upper = c & ~0177; | |
1756 | ||
1757 | c &= 0177; | |
1758 | ||
1759 | /* Everything in the columns containing the upper-case letters | |
1760 | denotes a control character. */ | |
1761 | if (c >= 0100 && c < 0140) | |
1762 | { | |
1763 | int oc = c; | |
1764 | c &= ~0140; | |
1765 | /* Set the shift modifier for a control char | |
1766 | made from a shifted letter. But only for letters! */ | |
1767 | if (oc >= 'A' && oc <= 'Z') | |
1768 | c |= shift_modifier; | |
1769 | } | |
1770 | ||
1771 | /* The lower-case letters denote control characters too. */ | |
1772 | else if (c >= 'a' && c <= 'z') | |
1773 | c &= ~0140; | |
1774 | ||
1775 | /* Include the bits for control and shift | |
1776 | only if the basic ASCII code can't indicate them. */ | |
1777 | else if (c >= ' ') | |
1778 | c |= ctrl_modifier; | |
1779 | ||
1780 | /* Replace the high bits. */ | |
1781 | c |= (upper & ~ctrl_modifier); | |
faf5e407 JB |
1782 | |
1783 | return c; | |
1784 | } | |
1785 | ||
1786 | ||
1787 | \f | |
284f4730 JB |
1788 | /* Input of single characters from keyboard */ |
1789 | ||
1790 | Lisp_Object print_help (); | |
1791 | static Lisp_Object kbd_buffer_get_event (); | |
e4fe371d | 1792 | static void record_char (); |
284f4730 | 1793 | |
c5fdd383 KH |
1794 | #ifdef MULTI_KBOARD |
1795 | static jmp_buf wrong_kboard_jmpbuf; | |
bded54dd | 1796 | #endif |
beecf6a1 | 1797 | |
284f4730 JB |
1798 | /* read a character from the keyboard; call the redisplay if needed */ |
1799 | /* commandflag 0 means do not do auto-saving, but do do redisplay. | |
1800 | -1 means do not do redisplay, but do do autosaving. | |
1801 | 1 means do both. */ | |
1802 | ||
7d6de002 RS |
1803 | /* The arguments MAPS and NMAPS are for menu prompting. |
1804 | MAPS is an array of keymaps; NMAPS is the length of MAPS. | |
1805 | ||
1806 | PREV_EVENT is the previous input event, or nil if we are reading | |
b638f328 RS |
1807 | the first event of a key sequence (or not reading a key sequence). |
1808 | If PREV_EVENT is t, that is a "magic" value that says | |
1809 | not to run input methods, but in other respects to act as if | |
1810 | not reading a key sequence. | |
7d6de002 | 1811 | |
83d68044 | 1812 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 1813 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 1814 | USED_MOUSE_MENU is null, we don't dereference it. |
dcc408a0 RS |
1815 | |
1816 | Value is t if we showed a menu and the user rejected it. */ | |
7d6de002 | 1817 | |
284f4730 | 1818 | Lisp_Object |
7d6de002 | 1819 | read_char (commandflag, nmaps, maps, prev_event, used_mouse_menu) |
284f4730 | 1820 | int commandflag; |
7d6de002 RS |
1821 | int nmaps; |
1822 | Lisp_Object *maps; | |
1823 | Lisp_Object prev_event; | |
1824 | int *used_mouse_menu; | |
284f4730 | 1825 | { |
7c3bc944 | 1826 | Lisp_Object c; |
284f4730 | 1827 | int count; |
410d4de9 | 1828 | jmp_buf local_getcjmp; |
284f4730 | 1829 | jmp_buf save_jump; |
a1341f75 | 1830 | int key_already_recorded = 0; |
017c7cb6 | 1831 | Lisp_Object tem, save; |
7ee32cda | 1832 | Lisp_Object previous_echo_area_message; |
e4fe371d | 1833 | Lisp_Object also_record; |
7d18f9ae | 1834 | int reread; |
d5eecefb | 1835 | struct gcpro gcpro1, gcpro2; |
7c3bc944 | 1836 | |
e4fe371d | 1837 | also_record = Qnil; |
284f4730 | 1838 | |
71918b75 RS |
1839 | before_command_key_count = this_command_key_count; |
1840 | before_command_echo_length = echo_length (); | |
ef6661f7 | 1841 | c = Qnil; |
7ee32cda | 1842 | previous_echo_area_message = Qnil; |
71918b75 | 1843 | |
7ee32cda | 1844 | GCPRO2 (c, previous_echo_area_message); |
7c3bc944 | 1845 | |
7f07d5ca RS |
1846 | retry: |
1847 | ||
7d18f9ae RS |
1848 | reread = 0; |
1849 | if (CONSP (Vunread_post_input_method_events)) | |
284f4730 | 1850 | { |
7d18f9ae RS |
1851 | c = XCONS (Vunread_post_input_method_events)->car; |
1852 | Vunread_post_input_method_events | |
1853 | = XCONS (Vunread_post_input_method_events)->cdr; | |
284f4730 | 1854 | |
2479e91e RS |
1855 | /* Undo what read_char_x_menu_prompt did when it unread |
1856 | additional keys returned by Fx_popup_menu. */ | |
1857 | if (CONSP (c) | |
1858 | && (SYMBOLP (XCONS (c)->car) || INTEGERP (XCONS (c)->car)) | |
1859 | && NILP (XCONS (c)->cdr)) | |
1860 | c = XCONS (c)->car; | |
1861 | ||
7d18f9ae RS |
1862 | reread = 1; |
1863 | goto reread_first; | |
284f4730 JB |
1864 | } |
1865 | ||
86e5706b RS |
1866 | if (unread_command_char != -1) |
1867 | { | |
18cd2eeb | 1868 | XSETINT (c, unread_command_char); |
86e5706b RS |
1869 | unread_command_char = -1; |
1870 | ||
7d18f9ae RS |
1871 | reread = 1; |
1872 | goto reread_first; | |
1873 | } | |
1874 | ||
1875 | if (CONSP (Vunread_command_events)) | |
1876 | { | |
1877 | c = XCONS (Vunread_command_events)->car; | |
1878 | Vunread_command_events = XCONS (Vunread_command_events)->cdr; | |
1879 | ||
1880 | /* Undo what read_char_x_menu_prompt did when it unread | |
1881 | additional keys returned by Fx_popup_menu. */ | |
1882 | if (CONSP (c) | |
1883 | && (SYMBOLP (XCONS (c)->car) || INTEGERP (XCONS (c)->car)) | |
1884 | && NILP (XCONS (c)->cdr)) | |
1885 | c = XCONS (c)->car; | |
1886 | ||
1887 | reread = 1; | |
1888 | goto reread_for_input_method; | |
1889 | } | |
1890 | ||
1891 | if (CONSP (Vunread_input_method_events)) | |
1892 | { | |
1893 | c = XCONS (Vunread_input_method_events)->car; | |
1894 | Vunread_input_method_events = XCONS (Vunread_input_method_events)->cdr; | |
1895 | ||
1896 | /* Undo what read_char_x_menu_prompt did when it unread | |
1897 | additional keys returned by Fx_popup_menu. */ | |
1898 | if (CONSP (c) | |
1899 | && (SYMBOLP (XCONS (c)->car) || INTEGERP (XCONS (c)->car)) | |
1900 | && NILP (XCONS (c)->cdr)) | |
1901 | c = XCONS (c)->car; | |
1902 | reread = 1; | |
1903 | goto reread_for_input_method; | |
86e5706b RS |
1904 | } |
1905 | ||
71918b75 RS |
1906 | /* If there is no function key translated before |
1907 | reset-this-command-lengths takes effect, forget about it. */ | |
1908 | before_command_restore_flag = 0; | |
1909 | ||
284f4730 JB |
1910 | if (!NILP (Vexecuting_macro)) |
1911 | { | |
fce33686 JB |
1912 | /* We set this to Qmacro; since that's not a frame, nobody will |
1913 | try to switch frames on us, and the selected window will | |
1914 | remain unchanged. | |
1915 | ||
1916 | Since this event came from a macro, it would be misleading to | |
eb8c3be9 | 1917 | leave internal_last_event_frame set to wherever the last |
3c370943 JB |
1918 | real event came from. Normally, a switch-frame event selects |
1919 | internal_last_event_frame after each command is read, but | |
1920 | events read from a macro should never cause a new frame to be | |
1921 | selected. */ | |
4c52b668 | 1922 | Vlast_event_frame = internal_last_event_frame = Qmacro; |
fce33686 | 1923 | |
663258f2 JB |
1924 | /* Exit the macro if we are at the end. |
1925 | Also, some things replace the macro with t | |
1926 | to force an early exit. */ | |
1927 | if (EQ (Vexecuting_macro, Qt) | |
1928 | || executing_macro_index >= XFASTINT (Flength (Vexecuting_macro))) | |
284f4730 | 1929 | { |
18cd2eeb | 1930 | XSETINT (c, -1); |
7c3bc944 | 1931 | RETURN_UNGCPRO (c); |
284f4730 | 1932 | } |
df0f2ba1 | 1933 | |
284f4730 | 1934 | c = Faref (Vexecuting_macro, make_number (executing_macro_index)); |
8c18cbfb | 1935 | if (STRINGP (Vexecuting_macro) |
86e5706b | 1936 | && (XINT (c) & 0x80)) |
bb9e9bed | 1937 | XSETFASTINT (c, CHAR_META | (XINT (c) & ~0x80)); |
86e5706b | 1938 | |
284f4730 JB |
1939 | executing_macro_index++; |
1940 | ||
1941 | goto from_macro; | |
1942 | } | |
1943 | ||
cd21b839 JB |
1944 | if (!NILP (unread_switch_frame)) |
1945 | { | |
1946 | c = unread_switch_frame; | |
1947 | unread_switch_frame = Qnil; | |
1948 | ||
1949 | /* This event should make it into this_command_keys, and get echoed | |
7d18f9ae | 1950 | again, so we do not set `reread'. */ |
f4255cd1 | 1951 | goto reread_first; |
cd21b839 JB |
1952 | } |
1953 | ||
adc1d5c8 | 1954 | /* if redisplay was requested */ |
6e4e64a8 RS |
1955 | if (commandflag >= 0) |
1956 | { | |
adc1d5c8 RS |
1957 | /* If there is pending input, process any events which are not |
1958 | user-visible, such as X selection_request events. */ | |
6e4e64a8 RS |
1959 | if (input_pending |
1960 | || detect_input_pending_run_timers (0)) | |
adc1d5c8 | 1961 | swallow_events (0); /* may clear input_pending */ |
6e4e64a8 | 1962 | |
adc1d5c8 RS |
1963 | /* Redisplay if no pending input. */ |
1964 | while (!input_pending) | |
1965 | { | |
1966 | redisplay (); | |
1967 | ||
1968 | if (!input_pending) | |
1969 | /* Normal case: no input arrived during redisplay. */ | |
1970 | break; | |
1971 | ||
1972 | /* Input arrived and pre-empted redisplay. | |
1973 | Process any events which are not user-visible. */ | |
1974 | swallow_events (0); | |
1975 | /* If that cleared input_pending, try again to redisplay. */ | |
1976 | } | |
6e4e64a8 | 1977 | } |
e9bf89a0 | 1978 | |
410d4de9 | 1979 | /* Message turns off echoing unless more keystrokes turn it on again. */ |
985f9f66 GM |
1980 | if (/* There is a current message. */ |
1981 | !NILP (echo_area_buffer[0]) | |
1982 | /* And we're not echoing from this kboard. */ | |
1983 | && echo_kboard != current_kboard | |
1984 | /* And it's either not ok to echo (ok_to_echo == NULL), or the | |
1985 | last char echoed was from a different kboard. */ | |
1986 | && ok_to_echo_at_next_pause != echo_kboard) | |
7ee32cda | 1987 | cancel_echoing (); |
410d4de9 RS |
1988 | else |
1989 | /* If already echoing, continue. */ | |
1990 | echo_dash (); | |
284f4730 | 1991 | |
410d4de9 RS |
1992 | /* Try reading a character via menu prompting in the minibuf. |
1993 | Try this before the sit-for, because the sit-for | |
1994 | would do the wrong thing if we are supposed to do | |
1995 | menu prompting. If EVENT_HAS_PARAMETERS then we are reading | |
1996 | after a mouse event so don't try a minibuf menu. */ | |
1997 | c = Qnil; | |
1998 | if (nmaps > 0 && INTERACTIVE | |
1999 | && !NILP (prev_event) && ! EVENT_HAS_PARAMETERS (prev_event) | |
2000 | /* Don't bring up a menu if we already have another event. */ | |
2001 | && NILP (Vunread_command_events) | |
2002 | && unread_command_char < 0 | |
4ec4ed6a | 2003 | && !detect_input_pending_run_timers (0)) |
410d4de9 RS |
2004 | { |
2005 | c = read_char_minibuf_menu_prompt (commandflag, nmaps, maps); | |
2006 | if (! NILP (c)) | |
2007 | { | |
2008 | key_already_recorded = 1; | |
2009 | goto non_reread_1; | |
2010 | } | |
2011 | } | |
284f4730 | 2012 | |
410d4de9 RS |
2013 | /* Make a longjmp point for quits to use, but don't alter getcjmp just yet. |
2014 | We will do that below, temporarily for short sections of code, | |
2015 | when appropriate. local_getcjmp must be in effect | |
2016 | around any call to sit_for or kbd_buffer_get_event; | |
2017 | it *must not* be in effect when we call redisplay. */ | |
284f4730 | 2018 | |
410d4de9 | 2019 | if (_setjmp (local_getcjmp)) |
284f4730 | 2020 | { |
18cd2eeb | 2021 | XSETINT (c, quit_char); |
788f89eb | 2022 | internal_last_event_frame = selected_frame; |
4c52b668 | 2023 | Vlast_event_frame = internal_last_event_frame; |
04904c29 RS |
2024 | /* If we report the quit char as an event, |
2025 | don't do so more than once. */ | |
2026 | if (!NILP (Vinhibit_quit)) | |
2027 | Vquit_flag = Qnil; | |
284f4730 | 2028 | |
c5fdd383 | 2029 | #ifdef MULTI_KBOARD |
df0f2ba1 | 2030 | { |
788f89eb | 2031 | KBOARD *kb = FRAME_KBOARD (XFRAME (selected_frame)); |
c5fdd383 | 2032 | if (kb != current_kboard) |
df0f2ba1 | 2033 | { |
c5fdd383 | 2034 | Lisp_Object *tailp = &kb->kbd_queue; |
1e8bd3da RS |
2035 | /* We shouldn't get here if we were in single-kboard mode! */ |
2036 | if (single_kboard) | |
df0f2ba1 KH |
2037 | abort (); |
2038 | while (CONSP (*tailp)) | |
2039 | tailp = &XCONS (*tailp)->cdr; | |
2040 | if (!NILP (*tailp)) | |
2041 | abort (); | |
2042 | *tailp = Fcons (c, Qnil); | |
c5fdd383 KH |
2043 | kb->kbd_queue_has_data = 1; |
2044 | current_kboard = kb; | |
ef6661f7 RS |
2045 | /* This is going to exit from read_char |
2046 | so we had better get rid of this frame's stuff. */ | |
2047 | UNGCPRO; | |
c5fdd383 | 2048 | longjmp (wrong_kboard_jmpbuf, 1); |
df0f2ba1 KH |
2049 | } |
2050 | } | |
2051 | #endif | |
284f4730 JB |
2052 | goto non_reread; |
2053 | } | |
2054 | ||
d9d4c147 KH |
2055 | timer_start_idle (); |
2056 | ||
284f4730 JB |
2057 | /* If in middle of key sequence and minibuffer not active, |
2058 | start echoing if enough time elapses. */ | |
410d4de9 | 2059 | |
7ee32cda GM |
2060 | if (minibuf_level == 0 |
2061 | && !current_kboard->immediate_echo | |
6c6083a9 | 2062 | && this_command_key_count > 0 |
27203ead | 2063 | && ! noninteractive |
284f4730 | 2064 | && echo_keystrokes > 0 |
985f9f66 GM |
2065 | && (/* No message. */ |
2066 | NILP (echo_area_buffer[0]) | |
2067 | /* Or empty message. */ | |
2068 | || (BUF_BEG (XBUFFER (echo_area_buffer[0])) | |
2069 | == BUF_Z (XBUFFER (echo_area_buffer[0]))) | |
2070 | /* Or already echoing from same kboard. */ | |
2071 | || (echo_kboard && ok_to_echo_at_next_pause == echo_kboard) | |
2072 | /* Or not echoing before and echoing allowed. */ | |
2073 | || (!echo_kboard && ok_to_echo_at_next_pause))) | |
284f4730 JB |
2074 | { |
2075 | Lisp_Object tem0; | |
985f9f66 | 2076 | |
7d6de002 RS |
2077 | /* After a mouse event, start echoing right away. |
2078 | This is because we are probably about to display a menu, | |
2079 | and we don't want to delay before doing so. */ | |
dbc4e1c1 | 2080 | if (EVENT_HAS_PARAMETERS (prev_event)) |
3dbd9ee4 | 2081 | echo_now (); |
7d6de002 RS |
2082 | else |
2083 | { | |
410d4de9 RS |
2084 | save_getcjmp (save_jump); |
2085 | restore_getcjmp (local_getcjmp); | |
41365083 | 2086 | tem0 = sit_for (echo_keystrokes, 0, 1, 1, 0); |
410d4de9 | 2087 | restore_getcjmp (save_jump); |
303b5b3f RS |
2088 | if (EQ (tem0, Qt) |
2089 | && ! CONSP (Vunread_command_events)) | |
3dbd9ee4 | 2090 | echo_now (); |
7d6de002 | 2091 | } |
284f4730 JB |
2092 | } |
2093 | ||
410d4de9 | 2094 | /* Maybe auto save due to number of keystrokes. */ |
284f4730 JB |
2095 | |
2096 | if (commandflag != 0 | |
2097 | && auto_save_interval > 0 | |
c43b1734 | 2098 | && num_nonmacro_input_events - last_auto_save > max (auto_save_interval, 20) |
4ec4ed6a | 2099 | && !detect_input_pending_run_timers (0)) |
284f4730 | 2100 | { |
284f4730 | 2101 | Fdo_auto_save (Qnil, Qnil); |
ef8fd672 RS |
2102 | /* Hooks can actually change some buffers in auto save. */ |
2103 | redisplay (); | |
284f4730 JB |
2104 | } |
2105 | ||
8150596a | 2106 | /* Try reading using an X menu. |
24597608 RS |
2107 | This is never confused with reading using the minibuf |
2108 | because the recursive call of read_char in read_char_minibuf_menu_prompt | |
2109 | does not pass on any keymaps. */ | |
410d4de9 | 2110 | |
24597608 | 2111 | if (nmaps > 0 && INTERACTIVE |
5a8d99e0 KH |
2112 | && !NILP (prev_event) |
2113 | && EVENT_HAS_PARAMETERS (prev_event) | |
2114 | && !EQ (XCONS (prev_event)->car, Qmenu_bar) | |
9ea173e8 | 2115 | && !EQ (XCONS (prev_event)->car, Qtool_bar) |
24597608 RS |
2116 | /* Don't bring up a menu if we already have another event. */ |
2117 | && NILP (Vunread_command_events) | |
b8556aee | 2118 | && unread_command_char < 0) |
8eb4d8ef RS |
2119 | { |
2120 | c = read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu); | |
2121 | ||
2122 | /* Now that we have read an event, Emacs is not idle. */ | |
2123 | timer_stop_idle (); | |
2124 | ||
7c3bc944 | 2125 | RETURN_UNGCPRO (c); |
8eb4d8ef | 2126 | } |
7d6de002 | 2127 | |
410d4de9 RS |
2128 | /* Maybe autosave and/or garbage collect due to idleness. */ |
2129 | ||
26c1639e | 2130 | if (INTERACTIVE && NILP (c)) |
7d6de002 RS |
2131 | { |
2132 | int delay_level, buffer_size; | |
2133 | ||
410d4de9 RS |
2134 | /* Slow down auto saves logarithmically in size of current buffer, |
2135 | and garbage collect while we're at it. */ | |
7d6de002 RS |
2136 | if (! MINI_WINDOW_P (XWINDOW (selected_window))) |
2137 | last_non_minibuf_size = Z - BEG; | |
2138 | buffer_size = (last_non_minibuf_size >> 8) + 1; | |
2139 | delay_level = 0; | |
2140 | while (buffer_size > 64) | |
2141 | delay_level++, buffer_size -= buffer_size >> 2; | |
2142 | if (delay_level < 4) delay_level = 4; | |
2143 | /* delay_level is 4 for files under around 50k, 7 at 100k, | |
2144 | 9 at 200k, 11 at 300k, and 12 at 500k. It is 15 at 1 meg. */ | |
2145 | ||
2146 | /* Auto save if enough time goes by without input. */ | |
2147 | if (commandflag != 0 | |
c43b1734 | 2148 | && num_nonmacro_input_events > last_auto_save |
8c18cbfb | 2149 | && INTEGERP (Vauto_save_timeout) |
7d6de002 RS |
2150 | && XINT (Vauto_save_timeout) > 0) |
2151 | { | |
2152 | Lisp_Object tem0; | |
410d4de9 RS |
2153 | |
2154 | save_getcjmp (save_jump); | |
2155 | restore_getcjmp (local_getcjmp); | |
d9d4c147 | 2156 | tem0 = sit_for (delay_level * XFASTINT (Vauto_save_timeout) / 4, |
41365083 | 2157 | 0, 1, 1, 0); |
410d4de9 RS |
2158 | restore_getcjmp (save_jump); |
2159 | ||
303b5b3f RS |
2160 | if (EQ (tem0, Qt) |
2161 | && ! CONSP (Vunread_command_events)) | |
7d6de002 | 2162 | { |
7d6de002 | 2163 | Fdo_auto_save (Qnil, Qnil); |
7d6de002 RS |
2164 | |
2165 | /* If we have auto-saved and there is still no input | |
2166 | available, garbage collect if there has been enough | |
2167 | consing going on to make it worthwhile. */ | |
4ec4ed6a | 2168 | if (!detect_input_pending_run_timers (0) |
7d6de002 | 2169 | && consing_since_gc > gc_cons_threshold / 2) |
ef8fd672 | 2170 | Fgarbage_collect (); |
410d4de9 | 2171 | |
ef8fd672 | 2172 | redisplay (); |
7d6de002 RS |
2173 | } |
2174 | } | |
2175 | } | |
284f4730 | 2176 | |
303b5b3f RS |
2177 | /* If this has become non-nil here, it has been set by a timer |
2178 | or sentinel or filter. */ | |
2179 | if (CONSP (Vunread_command_events)) | |
2180 | { | |
2181 | c = XCONS (Vunread_command_events)->car; | |
2182 | Vunread_command_events = XCONS (Vunread_command_events)->cdr; | |
2183 | } | |
2184 | ||
410d4de9 RS |
2185 | /* Read something from current KBOARD's side queue, if possible. */ |
2186 | ||
beecf6a1 | 2187 | if (NILP (c)) |
1e12dd87 | 2188 | { |
c5fdd383 | 2189 | if (current_kboard->kbd_queue_has_data) |
beecf6a1 | 2190 | { |
c5fdd383 | 2191 | if (!CONSP (current_kboard->kbd_queue)) |
4524b161 | 2192 | abort (); |
c5fdd383 KH |
2193 | c = XCONS (current_kboard->kbd_queue)->car; |
2194 | current_kboard->kbd_queue | |
2195 | = XCONS (current_kboard->kbd_queue)->cdr; | |
2196 | if (NILP (current_kboard->kbd_queue)) | |
2197 | current_kboard->kbd_queue_has_data = 0; | |
d9d4c147 | 2198 | input_pending = readable_events (0); |
4c52b668 KH |
2199 | if (EVENT_HAS_PARAMETERS (c) |
2200 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qswitch_frame)) | |
2201 | internal_last_event_frame = XCONS (XCONS (c)->cdr)->car; | |
2202 | Vlast_event_frame = internal_last_event_frame; | |
beecf6a1 | 2203 | } |
1e8bd3da RS |
2204 | } |
2205 | ||
c5fdd383 | 2206 | #ifdef MULTI_KBOARD |
1e8bd3da RS |
2207 | /* If current_kboard's side queue is empty check the other kboards. |
2208 | If one of them has data that we have not yet seen here, | |
2209 | switch to it and process the data waiting for it. | |
2210 | ||
2211 | Note: if the events queued up for another kboard | |
2212 | have already been seen here, and therefore are not a complete command, | |
2213 | the kbd_queue_has_data field is 0, so we skip that kboard here. | |
2214 | That's to avoid an infinite loop switching between kboards here. */ | |
2215 | if (NILP (c) && !single_kboard) | |
2216 | { | |
2217 | KBOARD *kb; | |
2218 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
2219 | if (kb->kbd_queue_has_data) | |
2220 | { | |
2221 | current_kboard = kb; | |
ef6661f7 RS |
2222 | /* This is going to exit from read_char |
2223 | so we had better get rid of this frame's stuff. */ | |
2224 | UNGCPRO; | |
1e8bd3da RS |
2225 | longjmp (wrong_kboard_jmpbuf, 1); |
2226 | } | |
2227 | } | |
df0f2ba1 KH |
2228 | #endif |
2229 | ||
410d4de9 RS |
2230 | wrong_kboard: |
2231 | ||
2232 | stop_polling (); | |
2233 | ||
1e8bd3da RS |
2234 | /* Finally, we read from the main queue, |
2235 | and if that gives us something we can't use yet, we put it on the | |
2236 | appropriate side queue and try again. */ | |
410d4de9 | 2237 | |
1e8bd3da RS |
2238 | if (NILP (c)) |
2239 | { | |
2240 | KBOARD *kb; | |
2241 | ||
1e8bd3da | 2242 | /* Actually read a character, waiting if necessary. */ |
410d4de9 RS |
2243 | save_getcjmp (save_jump); |
2244 | restore_getcjmp (local_getcjmp); | |
83d68044 | 2245 | c = kbd_buffer_get_event (&kb, used_mouse_menu); |
410d4de9 RS |
2246 | restore_getcjmp (save_jump); |
2247 | ||
c5fdd383 | 2248 | #ifdef MULTI_KBOARD |
410d4de9 | 2249 | if (! NILP (c) && (kb != current_kboard)) |
1e8bd3da RS |
2250 | { |
2251 | Lisp_Object *tailp = &kb->kbd_queue; | |
2252 | while (CONSP (*tailp)) | |
2253 | tailp = &XCONS (*tailp)->cdr; | |
2254 | if (!NILP (*tailp)) | |
2255 | abort (); | |
2256 | *tailp = Fcons (c, Qnil); | |
2257 | kb->kbd_queue_has_data = 1; | |
46b84797 | 2258 | c = Qnil; |
1e8bd3da RS |
2259 | if (single_kboard) |
2260 | goto wrong_kboard; | |
2261 | current_kboard = kb; | |
ef6661f7 RS |
2262 | /* This is going to exit from read_char |
2263 | so we had better get rid of this frame's stuff. */ | |
2264 | UNGCPRO; | |
1e8bd3da | 2265 | longjmp (wrong_kboard_jmpbuf, 1); |
df0f2ba1 | 2266 | } |
1e8bd3da | 2267 | #endif |
beecf6a1 | 2268 | } |
1e8bd3da | 2269 | |
284f4730 | 2270 | /* Terminate Emacs in batch mode if at eof. */ |
8c18cbfb | 2271 | if (noninteractive && INTEGERP (c) && XINT (c) < 0) |
284f4730 JB |
2272 | Fkill_emacs (make_number (1)); |
2273 | ||
8c18cbfb | 2274 | if (INTEGERP (c)) |
80645119 JB |
2275 | { |
2276 | /* Add in any extra modifiers, where appropriate. */ | |
2277 | if ((extra_keyboard_modifiers & CHAR_CTL) | |
2278 | || ((extra_keyboard_modifiers & 0177) < ' ' | |
2279 | && (extra_keyboard_modifiers & 0177) != 0)) | |
faf5e407 | 2280 | XSETINT (c, make_ctrl_char (XINT (c))); |
80645119 JB |
2281 | |
2282 | /* Transfer any other modifier bits directly from | |
2283 | extra_keyboard_modifiers to c. Ignore the actual character code | |
2284 | in the low 16 bits of extra_keyboard_modifiers. */ | |
b8d9050d | 2285 | XSETINT (c, XINT (c) | (extra_keyboard_modifiers & ~0xff7f & ~CHAR_CTL)); |
80645119 | 2286 | } |
9fa4395d | 2287 | |
284f4730 JB |
2288 | non_reread: |
2289 | ||
2fb9049e | 2290 | timer_stop_idle (); |
d9d4c147 | 2291 | |
284f4730 JB |
2292 | start_polling (); |
2293 | ||
410d4de9 RS |
2294 | if (NILP (c)) |
2295 | { | |
2296 | if (commandflag >= 0 | |
4ec4ed6a | 2297 | && !input_pending && !detect_input_pending_run_timers (0)) |
410d4de9 RS |
2298 | redisplay (); |
2299 | ||
2300 | goto wrong_kboard; | |
2301 | } | |
2302 | ||
2303 | non_reread_1: | |
2304 | ||
dfd11da7 | 2305 | /* Buffer switch events are only for internal wakeups |
7c3bc944 RS |
2306 | so don't show them to the user. |
2307 | Also, don't record a key if we already did. */ | |
2308 | if (BUFFERP (c) || key_already_recorded) | |
2309 | RETURN_UNGCPRO (c); | |
a1341f75 | 2310 | |
7f07d5ca RS |
2311 | /* Process special events within read_char |
2312 | and loop around to read another event. */ | |
017c7cb6 RS |
2313 | save = Vquit_flag; |
2314 | Vquit_flag = Qnil; | |
7f07d5ca RS |
2315 | tem = get_keyelt (access_keymap (get_keymap_1 (Vspecial_event_map, 0, 0), |
2316 | c, 0, 0), 1); | |
017c7cb6 | 2317 | Vquit_flag = save; |
7f07d5ca RS |
2318 | |
2319 | if (!NILP (tem)) | |
2320 | { | |
ba8dfba8 RS |
2321 | int was_locked = single_kboard; |
2322 | ||
7f07d5ca | 2323 | last_input_char = c; |
158f7532 | 2324 | Fcommand_execute (tem, Qnil, Fvector (1, &last_input_char), Qt); |
ba8dfba8 RS |
2325 | |
2326 | /* Resume allowing input from any kboard, if that was true before. */ | |
2327 | if (!was_locked) | |
2328 | any_kboard_state (); | |
2329 | ||
7f07d5ca RS |
2330 | goto retry; |
2331 | } | |
2332 | ||
284f4730 | 2333 | /* Handle things that only apply to characters. */ |
8c18cbfb | 2334 | if (INTEGERP (c)) |
284f4730 JB |
2335 | { |
2336 | /* If kbd_buffer_get_event gave us an EOF, return that. */ | |
86e5706b | 2337 | if (XINT (c) == -1) |
7c3bc944 | 2338 | RETURN_UNGCPRO (c); |
284f4730 | 2339 | |
301738ed RS |
2340 | if ((STRINGP (Vkeyboard_translate_table) |
2341 | && XSTRING (Vkeyboard_translate_table)->size > (unsigned) XFASTINT (c)) | |
2342 | || (VECTORP (Vkeyboard_translate_table) | |
2343 | && XVECTOR (Vkeyboard_translate_table)->size > (unsigned) XFASTINT (c)) | |
2344 | || (CHAR_TABLE_P (Vkeyboard_translate_table) | |
2345 | && CHAR_TABLE_ORDINARY_SLOTS > (unsigned) XFASTINT (c))) | |
f9414d62 RS |
2346 | { |
2347 | Lisp_Object d; | |
2348 | d = Faref (Vkeyboard_translate_table, c); | |
2349 | /* nil in keyboard-translate-table means no translation. */ | |
2350 | if (!NILP (d)) | |
2351 | c = d; | |
2352 | } | |
284f4730 JB |
2353 | } |
2354 | ||
e4fe371d RS |
2355 | /* If this event is a mouse click in the menu bar, |
2356 | return just menu-bar for now. Modify the mouse click event | |
2357 | so we won't do this twice, then queue it up. */ | |
2358 | if (EVENT_HAS_PARAMETERS (c) | |
2359 | && CONSP (XCONS (c)->cdr) | |
2360 | && CONSP (EVENT_START (c)) | |
2361 | && CONSP (XCONS (EVENT_START (c))->cdr)) | |
284f4730 | 2362 | { |
e4fe371d | 2363 | Lisp_Object posn; |
284f4730 | 2364 | |
e4fe371d RS |
2365 | posn = POSN_BUFFER_POSN (EVENT_START (c)); |
2366 | /* Handle menu-bar events: | |
2367 | insert the dummy prefix event `menu-bar'. */ | |
9ea173e8 | 2368 | if (EQ (posn, Qmenu_bar) || EQ (posn, Qtool_bar)) |
e4fe371d RS |
2369 | { |
2370 | /* Change menu-bar to (menu-bar) as the event "position". */ | |
2371 | POSN_BUFFER_POSN (EVENT_START (c)) = Fcons (posn, Qnil); | |
284f4730 | 2372 | |
e4fe371d RS |
2373 | also_record = c; |
2374 | Vunread_command_events = Fcons (c, Vunread_command_events); | |
2375 | c = posn; | |
284f4730 | 2376 | } |
284f4730 JB |
2377 | } |
2378 | ||
7d18f9ae RS |
2379 | /* Store these characters into recent_keys, the dribble file if any, |
2380 | and the keyboard macro being defined, if any. */ | |
e4fe371d RS |
2381 | record_char (c); |
2382 | if (! NILP (also_record)) | |
2383 | record_char (also_record); | |
51172b6d | 2384 | |
d5eecefb RS |
2385 | /* Wipe the echo area. |
2386 | But first, if we are about to use an input method, | |
2387 | save the echo area contents for it to refer to. */ | |
2388 | if (INTEGERP (c) | |
2389 | && ! NILP (Vinput_method_function) | |
2390 | && (unsigned) XINT (c) >= ' ' | |
2391 | && (unsigned) XINT (c) < 127) | |
7ee32cda GM |
2392 | { |
2393 | previous_echo_area_message = Fcurrent_message (); | |
2394 | Vinput_method_previous_message = previous_echo_area_message; | |
2395 | } | |
d5eecefb RS |
2396 | |
2397 | /* Now wipe the echo area. */ | |
985f9f66 | 2398 | if (!NILP (echo_area_buffer[0])) |
d5eecefb | 2399 | safe_run_hooks (Qecho_area_clear_hook); |
985f9f66 | 2400 | clear_message (1, 0); |
d5eecefb | 2401 | |
7d18f9ae | 2402 | reread_for_input_method: |
284f4730 | 2403 | from_macro: |
7d18f9ae | 2404 | /* Pass this to the input method, if appropriate. */ |
d5eecefb RS |
2405 | if (INTEGERP (c) |
2406 | && ! NILP (Vinput_method_function) | |
b638f328 RS |
2407 | /* Don't run the input method within a key sequence, |
2408 | after the first event of the key sequence. */ | |
2409 | && NILP (prev_event) | |
d5eecefb RS |
2410 | && (unsigned) XINT (c) >= ' ' |
2411 | && (unsigned) XINT (c) < 127) | |
2412 | { | |
2413 | Lisp_Object keys; | |
6e5742a0 | 2414 | int key_count; |
d5eecefb | 2415 | struct gcpro gcpro1; |
b638f328 | 2416 | int count = specpdl_ptr - specpdl; |
d5eecefb | 2417 | |
6e5742a0 RS |
2418 | /* Save the echo status. */ |
2419 | int saved_immediate_echo = current_kboard->immediate_echo; | |
985f9f66 | 2420 | struct kboard *saved_ok_to_echo = ok_to_echo_at_next_pause; |
6e5742a0 RS |
2421 | int saved_echo_after_prompt = current_kboard->echo_after_prompt; |
2422 | ||
2423 | if (before_command_restore_flag) | |
2424 | { | |
2425 | this_command_key_count = before_command_key_count_1; | |
2426 | if (this_command_key_count < this_single_command_key_start) | |
2427 | this_single_command_key_start = this_command_key_count; | |
2428 | echo_truncate (before_command_echo_length_1); | |
2429 | before_command_restore_flag = 0; | |
2430 | } | |
2431 | ||
2432 | /* Save the this_command_keys status. */ | |
2433 | key_count = this_command_key_count; | |
2434 | ||
2435 | if (key_count > 0) | |
2436 | keys = Fcopy_sequence (this_command_keys); | |
2437 | else | |
2438 | keys = Qnil; | |
d5eecefb | 2439 | GCPRO1 (keys); |
6e5742a0 RS |
2440 | |
2441 | /* Clear out this_command_keys. */ | |
2442 | this_command_key_count = 0; | |
2443 | ||
2444 | /* Now wipe the echo area. */ | |
985f9f66 | 2445 | if (!NILP (echo_area_buffer[0])) |
6e5742a0 | 2446 | safe_run_hooks (Qecho_area_clear_hook); |
985f9f66 | 2447 | clear_message (1, 0); |
6e5742a0 RS |
2448 | echo_truncate (0); |
2449 | ||
b638f328 RS |
2450 | /* If we are not reading a key sequence, |
2451 | never use the echo area. */ | |
2452 | if (maps == 0) | |
2453 | { | |
b638f328 RS |
2454 | specbind (Qinput_method_use_echo_area, Qt); |
2455 | } | |
2456 | ||
6e5742a0 | 2457 | /* Call the input method. */ |
d5eecefb | 2458 | tem = call1 (Vinput_method_function, c); |
b638f328 RS |
2459 | |
2460 | tem = unbind_to (count, tem); | |
2461 | ||
6e5742a0 RS |
2462 | /* Restore the saved echoing state |
2463 | and this_command_keys state. */ | |
2464 | this_command_key_count = key_count; | |
2465 | if (key_count > 0) | |
2466 | this_command_keys = keys; | |
2467 | ||
2468 | cancel_echoing (); | |
2469 | ok_to_echo_at_next_pause = saved_ok_to_echo; | |
2470 | current_kboard->echo_after_prompt = saved_echo_after_prompt; | |
2471 | if (saved_immediate_echo) | |
2472 | echo_now (); | |
2473 | ||
d5eecefb | 2474 | UNGCPRO; |
6e5742a0 | 2475 | |
d5eecefb RS |
2476 | /* The input method can return no events. */ |
2477 | if (! CONSP (tem)) | |
7d18f9ae | 2478 | { |
d5eecefb | 2479 | /* Bring back the previous message, if any. */ |
7ee32cda GM |
2480 | if (! NILP (previous_echo_area_message)) |
2481 | message_with_string ("%s", previous_echo_area_message, 0); | |
d5eecefb | 2482 | goto retry; |
7d18f9ae | 2483 | } |
d5eecefb RS |
2484 | /* It returned one event or more. */ |
2485 | c = XCONS (tem)->car; | |
2486 | Vunread_post_input_method_events | |
2487 | = nconc2 (XCONS (tem)->cdr, Vunread_post_input_method_events); | |
7d18f9ae | 2488 | } |
7c3bc944 | 2489 | |
7d18f9ae | 2490 | reread_first: |
284f4730 | 2491 | |
7ee32cda GM |
2492 | /* Display help if not echoing. */ |
2493 | if (CONSP (c) | |
2494 | && EQ (XCAR (c), Qhelp_echo)) | |
2495 | { | |
2496 | Lisp_Object msg = XCDR (XCDR (c)); | |
2497 | ||
2498 | if (!NILP (Vshow_help_function)) | |
2499 | call1 (Vshow_help_function, msg); | |
2500 | else if (!echoing && !MINI_WINDOW_P (XWINDOW (selected_window))) | |
2501 | { | |
2502 | if (STRINGP (msg)) | |
2503 | message3_nolog (msg, XSTRING (msg)->size, STRING_MULTIBYTE (msg)); | |
2504 | else | |
2505 | message (0); | |
2506 | } | |
2507 | ||
2508 | goto retry; | |
2509 | } | |
2510 | ||
7d18f9ae | 2511 | if (this_command_key_count == 0 || ! reread) |
e4fe371d | 2512 | { |
7d18f9ae RS |
2513 | before_command_key_count = this_command_key_count; |
2514 | before_command_echo_length = echo_length (); | |
2515 | ||
2516 | /* Don't echo mouse motion events. */ | |
2517 | if (echo_keystrokes | |
2518 | && ! (EVENT_HAS_PARAMETERS (c) | |
2519 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement))) | |
2520 | { | |
2521 | echo_char (c); | |
2522 | if (! NILP (also_record)) | |
2523 | echo_char (also_record); | |
2524 | /* Once we reread a character, echoing can happen | |
2525 | the next time we pause to read a new one. */ | |
985f9f66 | 2526 | ok_to_echo_at_next_pause = current_kboard; |
7d18f9ae RS |
2527 | } |
2528 | ||
2529 | /* Record this character as part of the current key. */ | |
2530 | add_command_key (c); | |
e4fe371d | 2531 | if (! NILP (also_record)) |
7d18f9ae | 2532 | add_command_key (also_record); |
e4fe371d | 2533 | } |
b8556aee | 2534 | |
284f4730 | 2535 | last_input_char = c; |
c43b1734 | 2536 | num_input_events++; |
284f4730 JB |
2537 | |
2538 | /* Process the help character specially if enabled */ | |
ecb7cb34 | 2539 | if (!NILP (Vhelp_form) && help_char_p (c)) |
284f4730 JB |
2540 | { |
2541 | Lisp_Object tem0; | |
2542 | count = specpdl_ptr - specpdl; | |
2543 | ||
2544 | record_unwind_protect (Fset_window_configuration, | |
2545 | Fcurrent_window_configuration (Qnil)); | |
2546 | ||
2547 | tem0 = Feval (Vhelp_form); | |
8c18cbfb | 2548 | if (STRINGP (tem0)) |
284f4730 JB |
2549 | internal_with_output_to_temp_buffer ("*Help*", print_help, tem0); |
2550 | ||
2551 | cancel_echoing (); | |
3cb81011 KH |
2552 | do |
2553 | c = read_char (0, 0, 0, Qnil, 0); | |
8c18cbfb | 2554 | while (BUFFERP (c)); |
ff11dfa1 | 2555 | /* Remove the help from the frame */ |
284f4730 | 2556 | unbind_to (count, Qnil); |
410d4de9 | 2557 | |
284f4730 JB |
2558 | redisplay (); |
2559 | if (EQ (c, make_number (040))) | |
2560 | { | |
2561 | cancel_echoing (); | |
3cb81011 KH |
2562 | do |
2563 | c = read_char (0, 0, 0, Qnil, 0); | |
8c18cbfb | 2564 | while (BUFFERP (c)); |
284f4730 JB |
2565 | } |
2566 | } | |
2567 | ||
7c3bc944 | 2568 | RETURN_UNGCPRO (c); |
284f4730 JB |
2569 | } |
2570 | ||
8eb4d8ef RS |
2571 | /* Record a key that came from a mouse menu. |
2572 | Record it for echoing, for this-command-keys, and so on. */ | |
2573 | ||
2574 | static void | |
2575 | record_menu_key (c) | |
2576 | Lisp_Object c; | |
2577 | { | |
2578 | /* Wipe the echo area. */ | |
985f9f66 | 2579 | clear_message (1, 0); |
8eb4d8ef RS |
2580 | |
2581 | record_char (c); | |
2582 | ||
2583 | before_command_key_count = this_command_key_count; | |
2584 | before_command_echo_length = echo_length (); | |
2585 | ||
2586 | /* Don't echo mouse motion events. */ | |
2587 | if (echo_keystrokes) | |
2588 | { | |
2589 | echo_char (c); | |
2590 | ||
2591 | /* Once we reread a character, echoing can happen | |
2592 | the next time we pause to read a new one. */ | |
2593 | ok_to_echo_at_next_pause = 0; | |
2594 | } | |
2595 | ||
2596 | /* Record this character as part of the current key. */ | |
2597 | add_command_key (c); | |
2598 | ||
2599 | /* Re-reading in the middle of a command */ | |
2600 | last_input_char = c; | |
c43b1734 | 2601 | num_input_events++; |
8eb4d8ef RS |
2602 | } |
2603 | ||
ecb7cb34 KH |
2604 | /* Return 1 if should recognize C as "the help character". */ |
2605 | ||
2606 | int | |
2607 | help_char_p (c) | |
2608 | Lisp_Object c; | |
2609 | { | |
2610 | Lisp_Object tail; | |
2611 | ||
2612 | if (EQ (c, Vhelp_char)) | |
2613 | return 1; | |
2614 | for (tail = Vhelp_event_list; CONSP (tail); tail = XCONS (tail)->cdr) | |
2615 | if (EQ (c, XCONS (tail)->car)) | |
2616 | return 1; | |
2617 | return 0; | |
2618 | } | |
2619 | ||
e4fe371d RS |
2620 | /* Record the input event C in various ways. */ |
2621 | ||
2622 | static void | |
2623 | record_char (c) | |
2624 | Lisp_Object c; | |
2625 | { | |
2626 | total_keys++; | |
2627 | XVECTOR (recent_keys)->contents[recent_keys_index] = c; | |
2628 | if (++recent_keys_index >= NUM_RECENT_KEYS) | |
2629 | recent_keys_index = 0; | |
2630 | ||
2631 | /* Write c to the dribble file. If c is a lispy event, write | |
2632 | the event's symbol to the dribble file, in <brackets>. Bleaugh. | |
2633 | If you, dear reader, have a better idea, you've got the source. :-) */ | |
2634 | if (dribble) | |
2635 | { | |
2636 | if (INTEGERP (c)) | |
2637 | { | |
2638 | if (XUINT (c) < 0x100) | |
2639 | putc (XINT (c), dribble); | |
2640 | else | |
6de34814 | 2641 | fprintf (dribble, " 0x%x", (int) XUINT (c)); |
e4fe371d RS |
2642 | } |
2643 | else | |
2644 | { | |
2645 | Lisp_Object dribblee; | |
2646 | ||
2647 | /* If it's a structured event, take the event header. */ | |
2648 | dribblee = EVENT_HEAD (c); | |
2649 | ||
2650 | if (SYMBOLP (dribblee)) | |
2651 | { | |
2652 | putc ('<', dribble); | |
2653 | fwrite (XSYMBOL (dribblee)->name->data, sizeof (char), | |
fc932ac6 | 2654 | STRING_BYTES (XSYMBOL (dribblee)->name), |
e4fe371d RS |
2655 | dribble); |
2656 | putc ('>', dribble); | |
2657 | } | |
2658 | } | |
2659 | ||
2660 | fflush (dribble); | |
2661 | } | |
2662 | ||
2663 | store_kbd_macro_char (c); | |
2664 | ||
c43b1734 | 2665 | num_nonmacro_input_events++; |
e4fe371d RS |
2666 | } |
2667 | ||
284f4730 JB |
2668 | Lisp_Object |
2669 | print_help (object) | |
2670 | Lisp_Object object; | |
2671 | { | |
622de3e9 | 2672 | struct buffer *old = current_buffer; |
284f4730 | 2673 | Fprinc (object, Qnil); |
622de3e9 KH |
2674 | set_buffer_internal (XBUFFER (Vstandard_output)); |
2675 | call0 (intern ("help-mode")); | |
2676 | set_buffer_internal (old); | |
284f4730 JB |
2677 | return Qnil; |
2678 | } | |
2679 | ||
2680 | /* Copy out or in the info on where C-g should throw to. | |
2681 | This is used when running Lisp code from within get_char, | |
2682 | in case get_char is called recursively. | |
2683 | See read_process_output. */ | |
2684 | ||
dfcf069d | 2685 | static void |
284f4730 JB |
2686 | save_getcjmp (temp) |
2687 | jmp_buf temp; | |
2688 | { | |
2689 | bcopy (getcjmp, temp, sizeof getcjmp); | |
2690 | } | |
2691 | ||
dfcf069d | 2692 | static void |
284f4730 JB |
2693 | restore_getcjmp (temp) |
2694 | jmp_buf temp; | |
2695 | { | |
2696 | bcopy (temp, getcjmp, sizeof getcjmp); | |
2697 | } | |
284f4730 | 2698 | \f |
2eb6bfbe RM |
2699 | #ifdef HAVE_MOUSE |
2700 | ||
284f4730 JB |
2701 | /* Restore mouse tracking enablement. See Ftrack_mouse for the only use |
2702 | of this function. */ | |
a9d77f1f | 2703 | |
284f4730 JB |
2704 | static Lisp_Object |
2705 | tracking_off (old_value) | |
2706 | Lisp_Object old_value; | |
2707 | { | |
71edead1 RS |
2708 | do_mouse_tracking = old_value; |
2709 | if (NILP (old_value)) | |
284f4730 | 2710 | { |
284f4730 JB |
2711 | /* Redisplay may have been preempted because there was input |
2712 | available, and it assumes it will be called again after the | |
2713 | input has been processed. If the only input available was | |
2714 | the sort that we have just disabled, then we need to call | |
2715 | redisplay. */ | |
d9d4c147 | 2716 | if (!readable_events (1)) |
284f4730 JB |
2717 | { |
2718 | redisplay_preserve_echo_area (); | |
d9d4c147 | 2719 | get_input_pending (&input_pending, 1); |
284f4730 JB |
2720 | } |
2721 | } | |
2722 | } | |
2723 | ||
2724 | DEFUN ("track-mouse", Ftrack_mouse, Strack_mouse, 0, UNEVALLED, 0, | |
4bb994d1 JB |
2725 | "Evaluate BODY with mouse movement events enabled.\n\ |
2726 | Within a `track-mouse' form, mouse motion generates input events that\n\ | |
2727 | you can read with `read-event'.\n\ | |
2728 | Normally, mouse motion is ignored.") | |
284f4730 JB |
2729 | (args) |
2730 | Lisp_Object args; | |
2731 | { | |
2732 | int count = specpdl_ptr - specpdl; | |
2733 | Lisp_Object val; | |
2734 | ||
a9d77f1f | 2735 | record_unwind_protect (tracking_off, do_mouse_tracking); |
284f4730 | 2736 | |
f3253854 | 2737 | do_mouse_tracking = Qt; |
df0f2ba1 | 2738 | |
284f4730 JB |
2739 | val = Fprogn (args); |
2740 | return unbind_to (count, val); | |
2741 | } | |
2eb6bfbe | 2742 | |
f3253854 KH |
2743 | /* If mouse has moved on some frame, return one of those frames. |
2744 | Return 0 otherwise. */ | |
2745 | ||
2746 | static FRAME_PTR | |
2747 | some_mouse_moved () | |
2748 | { | |
2749 | Lisp_Object tail, frame; | |
2750 | ||
2751 | FOR_EACH_FRAME (tail, frame) | |
2752 | { | |
2753 | if (XFRAME (frame)->mouse_moved) | |
2754 | return XFRAME (frame); | |
2755 | } | |
2756 | ||
2757 | return 0; | |
2758 | } | |
2759 | ||
2eb6bfbe | 2760 | #endif /* HAVE_MOUSE */ |
a612e298 RS |
2761 | \f |
2762 | /* Low level keyboard/mouse input. | |
2763 | kbd_buffer_store_event places events in kbd_buffer, and | |
0646c0dd | 2764 | kbd_buffer_get_event retrieves them. */ |
a612e298 RS |
2765 | |
2766 | /* Return true iff there are any events in the queue that read-char | |
2767 | would return. If this returns false, a read-char would block. */ | |
2768 | static int | |
d9d4c147 KH |
2769 | readable_events (do_timers_now) |
2770 | int do_timers_now; | |
a612e298 | 2771 | { |
4ec4ed6a RS |
2772 | if (do_timers_now) |
2773 | timer_check (do_timers_now); | |
2774 | ||
beecf6a1 KH |
2775 | if (kbd_fetch_ptr != kbd_store_ptr) |
2776 | return 1; | |
2777 | #ifdef HAVE_MOUSE | |
f3253854 | 2778 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
beecf6a1 KH |
2779 | return 1; |
2780 | #endif | |
1e8bd3da | 2781 | if (single_kboard) |
4c52b668 | 2782 | { |
c5fdd383 | 2783 | if (current_kboard->kbd_queue_has_data) |
4c52b668 KH |
2784 | return 1; |
2785 | } | |
2786 | else | |
2787 | { | |
c5fdd383 KH |
2788 | KBOARD *kb; |
2789 | for (kb = all_kboards; kb; kb = kb->next_kboard) | |
2790 | if (kb->kbd_queue_has_data) | |
4c52b668 KH |
2791 | return 1; |
2792 | } | |
beecf6a1 | 2793 | return 0; |
a612e298 RS |
2794 | } |
2795 | ||
2796 | /* Set this for debugging, to have a way to get out */ | |
2797 | int stop_character; | |
284f4730 | 2798 | |
c5fdd383 KH |
2799 | #ifdef MULTI_KBOARD |
2800 | static KBOARD * | |
2801 | event_to_kboard (event) | |
5798cf15 KH |
2802 | struct input_event *event; |
2803 | { | |
2804 | Lisp_Object frame; | |
2805 | frame = event->frame_or_window; | |
2806 | if (CONSP (frame)) | |
2807 | frame = XCONS (frame)->car; | |
2808 | else if (WINDOWP (frame)) | |
2809 | frame = WINDOW_FRAME (XWINDOW (frame)); | |
2810 | ||
2811 | /* There are still some events that don't set this field. | |
f5b56972 KH |
2812 | For now, just ignore the problem. |
2813 | Also ignore dead frames here. */ | |
2814 | if (!FRAMEP (frame) || !FRAME_LIVE_P (XFRAME (frame))) | |
5798cf15 KH |
2815 | return 0; |
2816 | else | |
c5fdd383 | 2817 | return FRAME_KBOARD (XFRAME (frame)); |
5798cf15 KH |
2818 | } |
2819 | #endif | |
2820 | ||
284f4730 JB |
2821 | /* Store an event obtained at interrupt level into kbd_buffer, fifo */ |
2822 | ||
2823 | void | |
2824 | kbd_buffer_store_event (event) | |
2825 | register struct input_event *event; | |
2826 | { | |
2827 | if (event->kind == no_event) | |
2828 | abort (); | |
2829 | ||
2830 | if (event->kind == ascii_keystroke) | |
2831 | { | |
e9bf89a0 | 2832 | register int c = event->code & 0377; |
284f4730 | 2833 | |
faf5e407 JB |
2834 | if (event->modifiers & ctrl_modifier) |
2835 | c = make_ctrl_char (c); | |
2836 | ||
9fd7d808 RS |
2837 | c |= (event->modifiers |
2838 | & (meta_modifier | alt_modifier | |
2839 | | hyper_modifier | super_modifier)); | |
2840 | ||
86e5706b | 2841 | if (c == quit_char) |
284f4730 | 2842 | { |
3e51c7b7 | 2843 | extern SIGTYPE interrupt_signal (); |
c5fdd383 KH |
2844 | #ifdef MULTI_KBOARD |
2845 | KBOARD *kb; | |
5798cf15 KH |
2846 | struct input_event *sp; |
2847 | ||
1e8bd3da | 2848 | if (single_kboard |
c5fdd383 KH |
2849 | && (kb = FRAME_KBOARD (XFRAME (event->frame_or_window)), |
2850 | kb != current_kboard)) | |
5798cf15 | 2851 | { |
c5fdd383 | 2852 | kb->kbd_queue |
5798cf15 KH |
2853 | = Fcons (make_lispy_switch_frame (event->frame_or_window), |
2854 | Fcons (make_number (c), Qnil)); | |
c5fdd383 | 2855 | kb->kbd_queue_has_data = 1; |
5798cf15 KH |
2856 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) |
2857 | { | |
2858 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
2859 | sp = kbd_buffer; | |
2860 | ||
c5fdd383 | 2861 | if (event_to_kboard (sp) == kb) |
5798cf15 KH |
2862 | { |
2863 | sp->kind = no_event; | |
2864 | sp->frame_or_window = Qnil; | |
2865 | } | |
2866 | } | |
2867 | return; | |
2868 | } | |
2869 | #endif | |
3e51c7b7 | 2870 | |
284f4730 | 2871 | /* If this results in a quit_char being returned to Emacs as |
3c370943 | 2872 | input, set Vlast_event_frame properly. If this doesn't |
284f4730 | 2873 | get returned to Emacs as an event, the next event read |
ff11dfa1 | 2874 | will set Vlast_event_frame again, so this is safe to do. */ |
4bb994d1 | 2875 | { |
9b8eb840 | 2876 | Lisp_Object focus; |
4bb994d1 | 2877 | |
9b8eb840 | 2878 | focus = FRAME_FOCUS_FRAME (XFRAME (event->frame_or_window)); |
4bb994d1 | 2879 | if (NILP (focus)) |
beecf6a1 | 2880 | focus = event->frame_or_window; |
4c52b668 KH |
2881 | internal_last_event_frame = focus; |
2882 | Vlast_event_frame = focus; | |
4bb994d1 | 2883 | } |
3e51c7b7 | 2884 | |
ffd56f97 | 2885 | last_event_timestamp = event->timestamp; |
284f4730 JB |
2886 | interrupt_signal (); |
2887 | return; | |
2888 | } | |
2889 | ||
2890 | if (c && c == stop_character) | |
2891 | { | |
2892 | sys_suspend (); | |
2893 | return; | |
2894 | } | |
284f4730 | 2895 | } |
3fe8e9a2 RS |
2896 | /* Don't insert two buffer_switch_event's in a row. |
2897 | Just ignore the second one. */ | |
2898 | else if (event->kind == buffer_switch_event | |
2899 | && kbd_fetch_ptr != kbd_store_ptr | |
2900 | && kbd_store_ptr->kind == buffer_switch_event) | |
2901 | return; | |
284f4730 | 2902 | |
beecf6a1 KH |
2903 | if (kbd_store_ptr - kbd_buffer == KBD_BUFFER_SIZE) |
2904 | kbd_store_ptr = kbd_buffer; | |
284f4730 JB |
2905 | |
2906 | /* Don't let the very last slot in the buffer become full, | |
2907 | since that would make the two pointers equal, | |
2908 | and that is indistinguishable from an empty buffer. | |
2909 | Discard the event if it would fill the last slot. */ | |
beecf6a1 | 2910 | if (kbd_fetch_ptr - 1 != kbd_store_ptr) |
284f4730 | 2911 | { |
7ee32cda | 2912 | struct input_event *sp = kbd_store_ptr; |
612b78ef | 2913 | sp->kind = event->kind; |
27203ead RS |
2914 | if (event->kind == selection_request_event) |
2915 | { | |
2916 | /* We must not use the ordinary copying code for this case, | |
2917 | since `part' is an enum and copying it might not copy enough | |
2918 | in this case. */ | |
612b78ef | 2919 | bcopy (event, (char *) sp, sizeof (*event)); |
27203ead RS |
2920 | } |
2921 | else | |
2922 | { | |
612b78ef KH |
2923 | sp->code = event->code; |
2924 | sp->part = event->part; | |
2925 | sp->frame_or_window = event->frame_or_window; | |
2926 | sp->modifiers = event->modifiers; | |
2927 | sp->x = event->x; | |
2928 | sp->y = event->y; | |
2929 | sp->timestamp = event->timestamp; | |
27203ead | 2930 | } |
beecf6a1 KH |
2931 | (XVECTOR (kbd_buffer_frame_or_window)->contents[kbd_store_ptr |
2932 | - kbd_buffer] | |
7b4aedb9 | 2933 | = event->frame_or_window); |
284f4730 | 2934 | |
beecf6a1 | 2935 | kbd_store_ptr++; |
284f4730 JB |
2936 | } |
2937 | } | |
a612e298 | 2938 | \f |
07de30b9 GV |
2939 | /* Discard any mouse events in the event buffer by setting them to |
2940 | no_event. */ | |
2941 | void | |
2942 | discard_mouse_events () | |
2943 | { | |
2944 | struct input_event *sp; | |
2945 | for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++) | |
2946 | { | |
2947 | if (sp == kbd_buffer + KBD_BUFFER_SIZE) | |
2948 | sp = kbd_buffer; | |
2949 | ||
2950 | if (sp->kind == mouse_click | |
2951 | #ifdef WINDOWSNT | |
2952 | || sp->kind == w32_scroll_bar_click | |
2953 | #endif | |
2954 | || sp->kind == scroll_bar_click) | |
2955 | { | |
2956 | sp->kind = no_event; | |
2957 | } | |
2958 | } | |
2959 | } | |
2960 | \f | |
a612e298 RS |
2961 | /* Read one event from the event buffer, waiting if necessary. |
2962 | The value is a Lisp object representing the event. | |
2963 | The value is nil for an event that should be ignored, | |
2964 | or that was handled here. | |
2965 | We always read and discard one event. */ | |
284f4730 JB |
2966 | |
2967 | static Lisp_Object | |
83d68044 | 2968 | kbd_buffer_get_event (kbp, used_mouse_menu) |
410d4de9 | 2969 | KBOARD **kbp; |
83d68044 | 2970 | int *used_mouse_menu; |
284f4730 JB |
2971 | { |
2972 | register int c; | |
2973 | Lisp_Object obj; | |
c04cbc3b | 2974 | EMACS_TIME next_timer_delay; |
284f4730 JB |
2975 | |
2976 | if (noninteractive) | |
2977 | { | |
2978 | c = getchar (); | |
18cd2eeb | 2979 | XSETINT (obj, c); |
f5b56972 | 2980 | *kbp = current_kboard; |
284f4730 JB |
2981 | return obj; |
2982 | } | |
2983 | ||
2984 | /* Wait until there is input available. */ | |
2985 | for (;;) | |
2986 | { | |
beecf6a1 KH |
2987 | if (kbd_fetch_ptr != kbd_store_ptr) |
2988 | break; | |
2989 | #ifdef HAVE_MOUSE | |
f3253854 | 2990 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 2991 | break; |
beecf6a1 | 2992 | #endif |
284f4730 JB |
2993 | |
2994 | /* If the quit flag is set, then read_char will return | |
2995 | quit_char, so that counts as "available input." */ | |
2996 | if (!NILP (Vquit_flag)) | |
2997 | quit_throw_to_read_char (); | |
2998 | ||
2999 | /* One way or another, wait until input is available; then, if | |
3000 | interrupt handlers have not read it, read it now. */ | |
3001 | ||
3002 | #ifdef OLDVMS | |
3003 | wait_for_kbd_input (); | |
3004 | #else | |
3005 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
3006 | #ifdef SIGIO | |
3007 | gobble_input (0); | |
3008 | #endif /* SIGIO */ | |
beecf6a1 KH |
3009 | if (kbd_fetch_ptr != kbd_store_ptr) |
3010 | break; | |
3011 | #ifdef HAVE_MOUSE | |
f3253854 | 3012 | if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
beecf6a1 KH |
3013 | break; |
3014 | #endif | |
3015 | { | |
3016 | Lisp_Object minus_one; | |
f76475ad | 3017 | |
beecf6a1 | 3018 | XSETINT (minus_one, -1); |
d9d4c147 | 3019 | wait_reading_process_input (0, 0, minus_one, 1); |
284f4730 | 3020 | |
beecf6a1 KH |
3021 | if (!interrupt_input && kbd_fetch_ptr == kbd_store_ptr) |
3022 | /* Pass 1 for EXPECT since we just waited to have input. */ | |
3023 | read_avail_input (1); | |
3024 | } | |
284f4730 JB |
3025 | #endif /* not VMS */ |
3026 | } | |
3027 | ||
303b5b3f RS |
3028 | if (CONSP (Vunread_command_events)) |
3029 | { | |
3030 | Lisp_Object first; | |
3031 | first = XCONS (Vunread_command_events)->car; | |
3032 | Vunread_command_events = XCONS (Vunread_command_events)->cdr; | |
3033 | *kbp = current_kboard; | |
3034 | return first; | |
3035 | } | |
3036 | ||
284f4730 JB |
3037 | /* At this point, we know that there is a readable event available |
3038 | somewhere. If the event queue is empty, then there must be a | |
3039 | mouse movement enabled and available. */ | |
beecf6a1 | 3040 | if (kbd_fetch_ptr != kbd_store_ptr) |
284f4730 | 3041 | { |
cd21b839 | 3042 | struct input_event *event; |
3e51c7b7 | 3043 | |
beecf6a1 KH |
3044 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
3045 | ? kbd_fetch_ptr | |
3046 | : kbd_buffer); | |
3e51c7b7 | 3047 | |
cd21b839 | 3048 | last_event_timestamp = event->timestamp; |
cd21b839 | 3049 | |
c5fdd383 KH |
3050 | #ifdef MULTI_KBOARD |
3051 | *kbp = event_to_kboard (event); | |
3052 | if (*kbp == 0) | |
3053 | *kbp = current_kboard; /* Better than returning null ptr? */ | |
5798cf15 | 3054 | #else |
c5fdd383 | 3055 | *kbp = &the_only_kboard; |
5798cf15 | 3056 | #endif |
beecf6a1 | 3057 | |
4bb994d1 JB |
3058 | obj = Qnil; |
3059 | ||
48e416d4 | 3060 | /* These two kinds of events get special handling |
a612e298 RS |
3061 | and don't actually appear to the command loop. |
3062 | We return nil for them. */ | |
48e416d4 RS |
3063 | if (event->kind == selection_request_event) |
3064 | { | |
598a9fa7 | 3065 | #ifdef HAVE_X11 |
1e8bd3da RS |
3066 | struct input_event copy; |
3067 | ||
4581e928 RS |
3068 | /* Remove it from the buffer before processing it, |
3069 | since otherwise swallow_events will see it | |
3070 | and process it again. */ | |
1e8bd3da | 3071 | copy = *event; |
beecf6a1 | 3072 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3073 | input_pending = readable_events (0); |
4581e928 | 3074 | x_handle_selection_request (©); |
598a9fa7 JB |
3075 | #else |
3076 | /* We're getting selection request events, but we don't have | |
3077 | a window system. */ | |
3078 | abort (); | |
3079 | #endif | |
48e416d4 RS |
3080 | } |
3081 | ||
1e12dd87 | 3082 | else if (event->kind == selection_clear_event) |
48e416d4 | 3083 | { |
598a9fa7 | 3084 | #ifdef HAVE_X11 |
e0301c07 RS |
3085 | struct input_event copy; |
3086 | ||
3087 | /* Remove it from the buffer before processing it. */ | |
3088 | copy = *event; | |
beecf6a1 | 3089 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3090 | input_pending = readable_events (0); |
90c2bb0c | 3091 | x_handle_selection_clear (©); |
598a9fa7 JB |
3092 | #else |
3093 | /* We're getting selection request events, but we don't have | |
3094 | a window system. */ | |
3095 | abort (); | |
3096 | #endif | |
48e416d4 | 3097 | } |
e98a93eb | 3098 | #if defined (HAVE_X11) || defined (HAVE_NTGUI) |
990acea3 RS |
3099 | else if (event->kind == delete_window_event) |
3100 | { | |
bbdc2092 RS |
3101 | /* Make an event (delete-frame (FRAME)). */ |
3102 | obj = Fcons (event->frame_or_window, Qnil); | |
af17bd2b | 3103 | obj = Fcons (Qdelete_frame, Fcons (obj, Qnil)); |
beecf6a1 | 3104 | kbd_fetch_ptr = event + 1; |
af17bd2b KH |
3105 | } |
3106 | else if (event->kind == iconify_event) | |
3107 | { | |
3108 | /* Make an event (iconify-frame (FRAME)). */ | |
3109 | obj = Fcons (event->frame_or_window, Qnil); | |
3110 | obj = Fcons (Qiconify_frame, Fcons (obj, Qnil)); | |
beecf6a1 | 3111 | kbd_fetch_ptr = event + 1; |
af17bd2b KH |
3112 | } |
3113 | else if (event->kind == deiconify_event) | |
3114 | { | |
3115 | /* Make an event (make-frame-visible (FRAME)). */ | |
3116 | obj = Fcons (event->frame_or_window, Qnil); | |
3117 | obj = Fcons (Qmake_frame_visible, Fcons (obj, Qnil)); | |
beecf6a1 | 3118 | kbd_fetch_ptr = event + 1; |
990acea3 RS |
3119 | } |
3120 | #endif | |
a8015ab5 KH |
3121 | else if (event->kind == buffer_switch_event) |
3122 | { | |
3123 | /* The value doesn't matter here; only the type is tested. */ | |
18cd2eeb | 3124 | XSETBUFFER (obj, current_buffer); |
beecf6a1 | 3125 | kbd_fetch_ptr = event + 1; |
a8015ab5 | 3126 | } |
07de30b9 | 3127 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) |
099787c1 RS |
3128 | else if (event->kind == menu_bar_activate_event) |
3129 | { | |
3130 | kbd_fetch_ptr = event + 1; | |
d9d4c147 | 3131 | input_pending = readable_events (0); |
e649d076 RS |
3132 | if (FRAME_LIVE_P (XFRAME (event->frame_or_window))) |
3133 | x_activate_menubar (XFRAME (event->frame_or_window)); | |
099787c1 | 3134 | } |
1161d367 GV |
3135 | #endif |
3136 | #ifdef WINDOWSNT | |
3137 | else if (event->kind == language_change_event) | |
3138 | { | |
3139 | /* Make an event (language-change (FRAME CHARSET LCID)). */ | |
3140 | obj = Fcons (event->modifiers, Qnil); | |
3141 | obj = Fcons (event->code, Qnil); | |
3142 | obj = Fcons (event->frame_or_window, obj); | |
3143 | obj = Fcons (Qlanguage_change, Fcons (obj, Qnil)); | |
3144 | kbd_fetch_ptr = event + 1; | |
3145 | } | |
099787c1 | 3146 | #endif |
a612e298 | 3147 | /* Just discard these, by returning nil. |
c5fdd383 | 3148 | With MULTI_KBOARD, these events are used as placeholders |
5798cf15 KH |
3149 | when we need to randomly delete events from the queue. |
3150 | (They shouldn't otherwise be found in the buffer, | |
3151 | but on some machines it appears they do show up | |
c5fdd383 | 3152 | even without MULTI_KBOARD.) */ |
07de30b9 GV |
3153 | /* On Windows NT/9X, no_event is used to delete extraneous |
3154 | mouse events during a popup-menu call. */ | |
a612e298 | 3155 | else if (event->kind == no_event) |
beecf6a1 | 3156 | kbd_fetch_ptr = event + 1; |
7ee32cda GM |
3157 | else if (event->kind == HELP_EVENT) |
3158 | { | |
3159 | /* The car of event->frame_or_window is a frame, | |
3160 | the cdr is the help to display. */ | |
3161 | obj = Fcons (Qhelp_echo, event->frame_or_window); | |
3162 | kbd_fetch_ptr = event + 1; | |
3163 | } | |
4bb994d1 JB |
3164 | /* If this event is on a different frame, return a switch-frame this |
3165 | time, and leave the event in the queue for next time. */ | |
1e12dd87 RS |
3166 | else |
3167 | { | |
9b8eb840 | 3168 | Lisp_Object frame; |
1e12dd87 | 3169 | Lisp_Object focus; |
7b4aedb9 | 3170 | |
9b8eb840 | 3171 | frame = event->frame_or_window; |
2470a66f KH |
3172 | if (CONSP (frame)) |
3173 | frame = XCONS (frame)->car; | |
3174 | else if (WINDOWP (frame)) | |
1e12dd87 | 3175 | frame = WINDOW_FRAME (XWINDOW (frame)); |
4bb994d1 | 3176 | |
1e12dd87 RS |
3177 | focus = FRAME_FOCUS_FRAME (XFRAME (frame)); |
3178 | if (! NILP (focus)) | |
3179 | frame = focus; | |
07d2b8de | 3180 | |
4c52b668 | 3181 | if (! EQ (frame, internal_last_event_frame) |
788f89eb | 3182 | && !EQ (frame, selected_frame)) |
1e12dd87 | 3183 | obj = make_lispy_switch_frame (frame); |
4c52b668 | 3184 | internal_last_event_frame = frame; |
4bb994d1 | 3185 | |
1e12dd87 RS |
3186 | /* If we didn't decide to make a switch-frame event, go ahead |
3187 | and build a real event from the queue entry. */ | |
cd21b839 | 3188 | |
1e12dd87 RS |
3189 | if (NILP (obj)) |
3190 | { | |
3191 | obj = make_lispy_event (event); | |
e98a93eb | 3192 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) |
83d68044 KH |
3193 | /* If this was a menu selection, then set the flag to inhibit |
3194 | writing to last_nonmenu_event. Don't do this if the event | |
3195 | we're returning is (menu-bar), though; that indicates the | |
3196 | beginning of the menu sequence, and we might as well leave | |
3197 | that as the `event with parameters' for this selection. */ | |
7ee32cda | 3198 | if ((event->kind == menu_bar_event |
9ea173e8 | 3199 | || event->kind == TOOL_BAR_EVENT) |
83d68044 | 3200 | && !(CONSP (obj) && EQ (XCONS (obj)->car, Qmenu_bar)) |
9ea173e8 | 3201 | && !(CONSP (obj) && EQ (XCONS (obj)->car, Qtool_bar)) |
83d68044 KH |
3202 | && used_mouse_menu) |
3203 | *used_mouse_menu = 1; | |
3204 | #endif | |
1e12dd87 RS |
3205 | |
3206 | /* Wipe out this event, to catch bugs. */ | |
3207 | event->kind = no_event; | |
beecf6a1 | 3208 | XVECTOR (kbd_buffer_frame_or_window)->contents[event - kbd_buffer] = Qnil; |
1e12dd87 | 3209 | |
beecf6a1 | 3210 | kbd_fetch_ptr = event + 1; |
1e12dd87 | 3211 | } |
4bb994d1 | 3212 | } |
284f4730 | 3213 | } |
2eb6bfbe | 3214 | #ifdef HAVE_MOUSE |
a612e298 | 3215 | /* Try generating a mouse motion event. */ |
f3253854 | 3216 | else if (!NILP (do_mouse_tracking) && some_mouse_moved ()) |
284f4730 | 3217 | { |
f3253854 | 3218 | FRAME_PTR f = some_mouse_moved (); |
7b4aedb9 | 3219 | Lisp_Object bar_window; |
3c370943 | 3220 | enum scroll_bar_part part; |
e5d77022 JB |
3221 | Lisp_Object x, y; |
3222 | unsigned long time; | |
284f4730 | 3223 | |
c5fdd383 | 3224 | *kbp = current_kboard; |
e177ac3a RS |
3225 | /* Note that this uses F to determine which display to look at. |
3226 | If there is no valid info, it does not store anything | |
3227 | so x remains nil. */ | |
3228 | x = Qnil; | |
dd26ab75 | 3229 | (*mouse_position_hook) (&f, 0, &bar_window, &part, &x, &y, &time); |
4bb994d1 JB |
3230 | |
3231 | obj = Qnil; | |
284f4730 | 3232 | |
4bb994d1 JB |
3233 | /* Decide if we should generate a switch-frame event. Don't |
3234 | generate switch-frame events for motion outside of all Emacs | |
3235 | frames. */ | |
e177ac3a | 3236 | if (!NILP (x) && f) |
cd21b839 | 3237 | { |
9b8eb840 | 3238 | Lisp_Object frame; |
4bb994d1 | 3239 | |
9b8eb840 | 3240 | frame = FRAME_FOCUS_FRAME (f); |
4bb994d1 | 3241 | if (NILP (frame)) |
18cd2eeb | 3242 | XSETFRAME (frame, f); |
4bb994d1 | 3243 | |
4c52b668 | 3244 | if (! EQ (frame, internal_last_event_frame) |
788f89eb | 3245 | && !EQ (frame, selected_frame)) |
764cb3f9 | 3246 | obj = make_lispy_switch_frame (frame); |
4c52b668 | 3247 | internal_last_event_frame = frame; |
cd21b839 | 3248 | } |
4bb994d1 | 3249 | |
df0f2ba1 | 3250 | /* If we didn't decide to make a switch-frame event, go ahead and |
4bb994d1 | 3251 | return a mouse-motion event. */ |
e177ac3a | 3252 | if (!NILP (x) && NILP (obj)) |
7b4aedb9 | 3253 | obj = make_lispy_movement (f, bar_window, part, x, y, time); |
6cbff1cb | 3254 | } |
2eb6bfbe | 3255 | #endif /* HAVE_MOUSE */ |
284f4730 JB |
3256 | else |
3257 | /* We were promised by the above while loop that there was | |
3258 | something for us to read! */ | |
3259 | abort (); | |
3260 | ||
d9d4c147 | 3261 | input_pending = readable_events (0); |
284f4730 | 3262 | |
4c52b668 | 3263 | Vlast_event_frame = internal_last_event_frame; |
3c370943 | 3264 | |
284f4730 JB |
3265 | return (obj); |
3266 | } | |
a612e298 RS |
3267 | \f |
3268 | /* Process any events that are not user-visible, | |
3269 | then return, without reading any user-visible events. */ | |
3a3b9632 RS |
3270 | |
3271 | void | |
d9d4c147 KH |
3272 | swallow_events (do_display) |
3273 | int do_display; | |
3a3b9632 | 3274 | { |
87dd9b9b RS |
3275 | int old_timers_run; |
3276 | ||
beecf6a1 | 3277 | while (kbd_fetch_ptr != kbd_store_ptr) |
3a3b9632 RS |
3278 | { |
3279 | struct input_event *event; | |
3280 | ||
beecf6a1 KH |
3281 | event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE) |
3282 | ? kbd_fetch_ptr | |
3283 | : kbd_buffer); | |
3a3b9632 RS |
3284 | |
3285 | last_event_timestamp = event->timestamp; | |
3286 | ||
3287 | /* These two kinds of events get special handling | |
3288 | and don't actually appear to the command loop. */ | |
3289 | if (event->kind == selection_request_event) | |
3290 | { | |
3291 | #ifdef HAVE_X11 | |
4581e928 | 3292 | struct input_event copy; |
e0301c07 RS |
3293 | |
3294 | /* Remove it from the buffer before processing it, | |
3295 | since otherwise swallow_events called recursively could see it | |
3296 | and process it again. */ | |
4581e928 | 3297 | copy = *event; |
beecf6a1 | 3298 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3299 | input_pending = readable_events (0); |
4581e928 | 3300 | x_handle_selection_request (©); |
3a3b9632 RS |
3301 | #else |
3302 | /* We're getting selection request events, but we don't have | |
3303 | a window system. */ | |
3304 | abort (); | |
3305 | #endif | |
3306 | } | |
3307 | ||
3308 | else if (event->kind == selection_clear_event) | |
3309 | { | |
3310 | #ifdef HAVE_X11 | |
e0301c07 RS |
3311 | struct input_event copy; |
3312 | ||
3313 | /* Remove it from the buffer before processing it, */ | |
3314 | copy = *event; | |
3315 | ||
beecf6a1 | 3316 | kbd_fetch_ptr = event + 1; |
d9d4c147 | 3317 | input_pending = readable_events (0); |
90c2bb0c | 3318 | x_handle_selection_clear (©); |
3a3b9632 RS |
3319 | #else |
3320 | /* We're getting selection request events, but we don't have | |
3321 | a window system. */ | |
3322 | abort (); | |
3323 | #endif | |
3324 | } | |
3325 | else | |
3326 | break; | |
3327 | } | |
3328 | ||
87dd9b9b | 3329 | old_timers_run = timers_run; |
d9d4c147 | 3330 | get_input_pending (&input_pending, 1); |
87dd9b9b RS |
3331 | |
3332 | if (timers_run != old_timers_run && do_display) | |
3333 | redisplay_preserve_echo_area (); | |
3a3b9632 | 3334 | } |
a612e298 | 3335 | \f |
d9d4c147 KH |
3336 | static EMACS_TIME timer_idleness_start_time; |
3337 | ||
3338 | /* Record the start of when Emacs is idle, | |
3339 | for the sake of running idle-time timers. */ | |
3340 | ||
07a59269 | 3341 | void |
d9d4c147 KH |
3342 | timer_start_idle () |
3343 | { | |
3344 | Lisp_Object timers; | |
3345 | ||
3346 | /* If we are already in the idle state, do nothing. */ | |
3347 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
3348 | return; | |
3349 | ||
3350 | EMACS_GET_TIME (timer_idleness_start_time); | |
3351 | ||
3352 | /* Mark all idle-time timers as once again candidates for running. */ | |
3353 | for (timers = Vtimer_idle_list; CONSP (timers); timers = XCONS (timers)->cdr) | |
3354 | { | |
3355 | Lisp_Object timer; | |
3356 | ||
3357 | timer = XCONS (timers)->car; | |
3358 | ||
3359 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) | |
3360 | continue; | |
3361 | XVECTOR (timer)->contents[0] = Qnil; | |
3362 | } | |
3363 | } | |
3364 | ||
3365 | /* Record that Emacs is no longer idle, so stop running idle-time timers. */ | |
3366 | ||
07a59269 | 3367 | void |
d9d4c147 KH |
3368 | timer_stop_idle () |
3369 | { | |
3370 | EMACS_SET_SECS_USECS (timer_idleness_start_time, -1, -1); | |
3371 | } | |
3372 | ||
e044e87c RS |
3373 | /* This is only for debugging. */ |
3374 | struct input_event last_timer_event; | |
3375 | ||
c04cbc3b RS |
3376 | /* Check whether a timer has fired. To prevent larger problems we simply |
3377 | disregard elements that are not proper timers. Do not make a circular | |
3378 | timer list for the time being. | |
3379 | ||
3380 | Returns the number of seconds to wait until the next timer fires. If a | |
3381 | timer is triggering now, return zero seconds. | |
3382 | If no timer is active, return -1 seconds. | |
3383 | ||
4ec4ed6a RS |
3384 | If a timer is ripe, we run it, with quitting turned off. |
3385 | ||
3386 | DO_IT_NOW is now ignored. It used to mean that we should | |
3387 | run the timer directly instead of queueing a timer-event. | |
3388 | Now we always run timers directly. */ | |
c04cbc3b RS |
3389 | |
3390 | EMACS_TIME | |
3391 | timer_check (do_it_now) | |
3392 | int do_it_now; | |
3393 | { | |
3394 | EMACS_TIME nexttime; | |
9291c072 RS |
3395 | EMACS_TIME now, idleness_now; |
3396 | Lisp_Object timers, idle_timers, chosen_timer; | |
9291c072 | 3397 | struct gcpro gcpro1, gcpro2, gcpro3; |
c04cbc3b | 3398 | |
c04cbc3b RS |
3399 | EMACS_SET_SECS (nexttime, -1); |
3400 | EMACS_SET_USECS (nexttime, -1); | |
3401 | ||
9291c072 | 3402 | /* Always consider the ordinary timers. */ |
7ea13e12 | 3403 | timers = Vtimer_list; |
9291c072 RS |
3404 | /* Consider the idle timers only if Emacs is idle. */ |
3405 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
3406 | idle_timers = Vtimer_idle_list; | |
3407 | else | |
3408 | idle_timers = Qnil; | |
3409 | chosen_timer = Qnil; | |
3410 | GCPRO3 (timers, idle_timers, chosen_timer); | |
7ea13e12 | 3411 | |
9291c072 | 3412 | if (CONSP (timers) || CONSP (idle_timers)) |
c04cbc3b | 3413 | { |
9291c072 RS |
3414 | EMACS_GET_TIME (now); |
3415 | if (! EMACS_TIME_NEG_P (timer_idleness_start_time)) | |
3416 | EMACS_SUB_TIME (idleness_now, now, timer_idleness_start_time); | |
3417 | } | |
c04cbc3b | 3418 | |
9291c072 RS |
3419 | while (CONSP (timers) || CONSP (idle_timers)) |
3420 | { | |
3421 | int triggertime = EMACS_SECS (now); | |
3422 | Lisp_Object *vector; | |
3423 | Lisp_Object timer, idle_timer; | |
3424 | EMACS_TIME timer_time, idle_timer_time; | |
3425 | EMACS_TIME difference, timer_difference, idle_timer_difference; | |
3426 | ||
3427 | /* Skip past invalid timers and timers already handled. */ | |
3428 | if (!NILP (timers)) | |
c04cbc3b | 3429 | { |
d9d4c147 | 3430 | timer = XCONS (timers)->car; |
9291c072 RS |
3431 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) |
3432 | { | |
3433 | timers = XCONS (timers)->cdr; | |
3434 | continue; | |
3435 | } | |
3436 | vector = XVECTOR (timer)->contents; | |
d9d4c147 | 3437 | |
9291c072 RS |
3438 | if (!INTEGERP (vector[1]) || !INTEGERP (vector[2]) |
3439 | || !INTEGERP (vector[3]) | |
3440 | || ! NILP (vector[0])) | |
3441 | { | |
3442 | timers = XCONS (timers)->cdr; | |
3443 | continue; | |
3444 | } | |
3445 | } | |
3446 | if (!NILP (idle_timers)) | |
3447 | { | |
3448 | timer = XCONS (idle_timers)->car; | |
d9d4c147 | 3449 | if (!VECTORP (timer) || XVECTOR (timer)->size != 8) |
9291c072 RS |
3450 | { |
3451 | idle_timers = XCONS (idle_timers)->cdr; | |
3452 | continue; | |
3453 | } | |
d9d4c147 KH |
3454 | vector = XVECTOR (timer)->contents; |
3455 | ||
3456 | if (!INTEGERP (vector[1]) || !INTEGERP (vector[2]) | |
9291c072 RS |
3457 | || !INTEGERP (vector[3]) |
3458 | || ! NILP (vector[0])) | |
3459 | { | |
3460 | idle_timers = XCONS (idle_timers)->cdr; | |
3461 | continue; | |
3462 | } | |
3463 | } | |
d9d4c147 | 3464 | |
9291c072 RS |
3465 | /* Set TIMER, TIMER_TIME and TIMER_DIFFERENCE |
3466 | based on the next ordinary timer. | |
3467 | TIMER_DIFFERENCE is the distance in time from NOW to when | |
3468 | this timer becomes ripe (negative if it's already ripe). */ | |
3469 | if (!NILP (timers)) | |
3470 | { | |
3471 | timer = XCONS (timers)->car; | |
3472 | vector = XVECTOR (timer)->contents; | |
d9d4c147 KH |
3473 | EMACS_SET_SECS (timer_time, |
3474 | (XINT (vector[1]) << 16) | (XINT (vector[2]))); | |
3475 | EMACS_SET_USECS (timer_time, XINT (vector[3])); | |
9291c072 RS |
3476 | EMACS_SUB_TIME (timer_difference, timer_time, now); |
3477 | } | |
ba8dfba8 | 3478 | |
9291c072 RS |
3479 | /* Set IDLE_TIMER, IDLE_TIMER_TIME and IDLE_TIMER_DIFFERENCE |
3480 | based on the next idle timer. */ | |
3481 | if (!NILP (idle_timers)) | |
3482 | { | |
3483 | idle_timer = XCONS (idle_timers)->car; | |
3484 | vector = XVECTOR (idle_timer)->contents; | |
3485 | EMACS_SET_SECS (idle_timer_time, | |
3486 | (XINT (vector[1]) << 16) | (XINT (vector[2]))); | |
3487 | EMACS_SET_USECS (idle_timer_time, XINT (vector[3])); | |
3488 | EMACS_SUB_TIME (idle_timer_difference, idle_timer_time, idleness_now); | |
3489 | } | |
ba8dfba8 | 3490 | |
9291c072 RS |
3491 | /* Decide which timer is the next timer, |
3492 | and set CHOSEN_TIMER, VECTOR and DIFFERENCE accordingly. | |
3493 | Also step down the list where we found that timer. */ | |
d9d4c147 | 3494 | |
9291c072 RS |
3495 | if (! NILP (timers) && ! NILP (idle_timers)) |
3496 | { | |
3497 | EMACS_TIME temp; | |
3498 | EMACS_SUB_TIME (temp, timer_difference, idle_timer_difference); | |
3499 | if (EMACS_TIME_NEG_P (temp)) | |
3500 | { | |
3501 | chosen_timer = timer; | |
3502 | timers = XCONS (timers)->cdr; | |
3503 | difference = timer_difference; | |
c04cbc3b | 3504 | } |
d9d4c147 | 3505 | else |
d9d4c147 | 3506 | { |
9291c072 RS |
3507 | chosen_timer = idle_timer; |
3508 | idle_timers = XCONS (idle_timers)->cdr; | |
3509 | difference = idle_timer_difference; | |
d9d4c147 | 3510 | } |
7ea13e12 | 3511 | } |
9291c072 RS |
3512 | else if (! NILP (timers)) |
3513 | { | |
3514 | chosen_timer = timer; | |
3515 | timers = XCONS (timers)->cdr; | |
3516 | difference = timer_difference; | |
3517 | } | |
3518 | else | |
3519 | { | |
3520 | chosen_timer = idle_timer; | |
3521 | idle_timers = XCONS (idle_timers)->cdr; | |
3522 | difference = idle_timer_difference; | |
3523 | } | |
3524 | vector = XVECTOR (chosen_timer)->contents; | |
3525 | ||
3526 | /* If timer is rupe, run it if it hasn't been run. */ | |
3527 | if (EMACS_TIME_NEG_P (difference) | |
3528 | || (EMACS_SECS (difference) == 0 | |
3529 | && EMACS_USECS (difference) == 0)) | |
3530 | { | |
3531 | if (NILP (vector[0])) | |
3532 | { | |
d925fb39 RS |
3533 | Lisp_Object tem; |
3534 | int was_locked = single_kboard; | |
3535 | int count = specpdl_ptr - specpdl; | |
7ee32cda GM |
3536 | #ifdef HAVE_WINDOW_SYSTEM |
3537 | int old_inhibit_busy_cursor = inhibit_busy_cursor; | |
3538 | #endif | |
d925fb39 | 3539 | |
9291c072 RS |
3540 | /* Mark the timer as triggered to prevent problems if the lisp |
3541 | code fails to reschedule it right. */ | |
3542 | vector[0] = Qt; | |
3543 | ||
d925fb39 | 3544 | specbind (Qinhibit_quit, Qt); |
9291c072 | 3545 | |
7ee32cda GM |
3546 | #ifdef HAVE_WINDOW_SYSTEM |
3547 | inhibit_busy_cursor = 2; | |
3548 | #endif | |
3549 | ||
d925fb39 RS |
3550 | call1 (Qtimer_event_handler, chosen_timer); |
3551 | timers_run++; | |
9291c072 | 3552 | |
7ee32cda GM |
3553 | #ifdef HAVE_WINDOW_SYSTEM |
3554 | inhibit_busy_cursor = old_inhibit_busy_cursor; | |
3555 | #endif | |
3556 | ||
d925fb39 | 3557 | unbind_to (count, Qnil); |
4ec4ed6a | 3558 | |
d925fb39 RS |
3559 | /* Resume allowing input from any kboard, if that was true before. */ |
3560 | if (!was_locked) | |
3561 | any_kboard_state (); | |
9291c072 | 3562 | |
d925fb39 RS |
3563 | /* Since we have handled the event, |
3564 | we don't need to tell the caller to wake up and do it. */ | |
9291c072 RS |
3565 | } |
3566 | } | |
3567 | else | |
3568 | /* When we encounter a timer that is still waiting, | |
3569 | return the amount of time to wait before it is ripe. */ | |
3570 | { | |
3571 | UNGCPRO; | |
9291c072 RS |
3572 | return difference; |
3573 | } | |
c04cbc3b | 3574 | } |
9291c072 | 3575 | |
7ea13e12 RS |
3576 | /* No timers are pending in the future. */ |
3577 | /* Return 0 if we generated an event, and -1 if not. */ | |
3578 | UNGCPRO; | |
c04cbc3b RS |
3579 | return nexttime; |
3580 | } | |
3581 | \f | |
284f4730 | 3582 | /* Caches for modify_event_symbol. */ |
e9bf89a0 | 3583 | static Lisp_Object accent_key_syms; |
284f4730 JB |
3584 | static Lisp_Object func_key_syms; |
3585 | static Lisp_Object mouse_syms; | |
07de30b9 GV |
3586 | #ifdef WINDOWSNT |
3587 | static Lisp_Object mouse_wheel_syms; | |
3588 | #endif | |
a24dc617 | 3589 | static Lisp_Object drag_n_drop_syms; |
284f4730 | 3590 | |
e9bf89a0 RS |
3591 | /* This is a list of keysym codes for special "accent" characters. |
3592 | It parallels lispy_accent_keys. */ | |
3593 | ||
3594 | static int lispy_accent_codes[] = | |
3595 | { | |
79a7046c | 3596 | #ifdef XK_dead_circumflex |
e9bf89a0 | 3597 | XK_dead_circumflex, |
79a7046c RS |
3598 | #else |
3599 | 0, | |
3600 | #endif | |
3601 | #ifdef XK_dead_grave | |
e9bf89a0 | 3602 | XK_dead_grave, |
79a7046c RS |
3603 | #else |
3604 | 0, | |
3605 | #endif | |
3606 | #ifdef XK_dead_tilde | |
e9bf89a0 | 3607 | XK_dead_tilde, |
79a7046c RS |
3608 | #else |
3609 | 0, | |
3610 | #endif | |
3611 | #ifdef XK_dead_diaeresis | |
e9bf89a0 | 3612 | XK_dead_diaeresis, |
79a7046c RS |
3613 | #else |
3614 | 0, | |
3615 | #endif | |
3616 | #ifdef XK_dead_macron | |
e9bf89a0 | 3617 | XK_dead_macron, |
79a7046c RS |
3618 | #else |
3619 | 0, | |
3620 | #endif | |
3621 | #ifdef XK_dead_degree | |
e9bf89a0 | 3622 | XK_dead_degree, |
79a7046c RS |
3623 | #else |
3624 | 0, | |
3625 | #endif | |
3626 | #ifdef XK_dead_acute | |
e9bf89a0 | 3627 | XK_dead_acute, |
79a7046c RS |
3628 | #else |
3629 | 0, | |
3630 | #endif | |
3631 | #ifdef XK_dead_cedilla | |
e9bf89a0 | 3632 | XK_dead_cedilla, |
79a7046c RS |
3633 | #else |
3634 | 0, | |
3635 | #endif | |
3636 | #ifdef XK_dead_breve | |
e9bf89a0 | 3637 | XK_dead_breve, |
79a7046c RS |
3638 | #else |
3639 | 0, | |
3640 | #endif | |
3641 | #ifdef XK_dead_ogonek | |
e9bf89a0 | 3642 | XK_dead_ogonek, |
79a7046c RS |
3643 | #else |
3644 | 0, | |
3645 | #endif | |
3646 | #ifdef XK_dead_caron | |
e9bf89a0 | 3647 | XK_dead_caron, |
79a7046c RS |
3648 | #else |
3649 | 0, | |
3650 | #endif | |
3651 | #ifdef XK_dead_doubleacute | |
e9bf89a0 | 3652 | XK_dead_doubleacute, |
79a7046c RS |
3653 | #else |
3654 | 0, | |
3655 | #endif | |
3656 | #ifdef XK_dead_abovedot | |
e9bf89a0 | 3657 | XK_dead_abovedot, |
79a7046c RS |
3658 | #else |
3659 | 0, | |
3660 | #endif | |
e9bf89a0 RS |
3661 | }; |
3662 | ||
3663 | /* This is a list of Lisp names for special "accent" characters. | |
3664 | It parallels lispy_accent_codes. */ | |
3665 | ||
3666 | static char *lispy_accent_keys[] = | |
3667 | { | |
3668 | "dead-circumflex", | |
3669 | "dead-grave", | |
3670 | "dead-tilde", | |
3671 | "dead-diaeresis", | |
3672 | "dead-macron", | |
3673 | "dead-degree", | |
3674 | "dead-acute", | |
3675 | "dead-cedilla", | |
3676 | "dead-breve", | |
3677 | "dead-ogonek", | |
3678 | "dead-caron", | |
3679 | "dead-doubleacute", | |
3680 | "dead-abovedot", | |
3681 | }; | |
3682 | ||
e98a93eb GV |
3683 | #ifdef HAVE_NTGUI |
3684 | #define FUNCTION_KEY_OFFSET 0x0 | |
3685 | ||
3686 | char *lispy_function_keys[] = | |
3687 | { | |
3688 | 0, /* 0 */ | |
3689 | ||
3690 | 0, /* VK_LBUTTON 0x01 */ | |
3691 | 0, /* VK_RBUTTON 0x02 */ | |
3692 | "cancel", /* VK_CANCEL 0x03 */ | |
3693 | 0, /* VK_MBUTTON 0x04 */ | |
3694 | ||
3695 | 0, 0, 0, /* 0x05 .. 0x07 */ | |
3696 | ||
3697 | "backspace", /* VK_BACK 0x08 */ | |
3698 | "tab", /* VK_TAB 0x09 */ | |
3699 | ||
3700 | 0, 0, /* 0x0A .. 0x0B */ | |
3701 | ||
3702 | "clear", /* VK_CLEAR 0x0C */ | |
3703 | "return", /* VK_RETURN 0x0D */ | |
3704 | ||
3705 | 0, 0, /* 0x0E .. 0x0F */ | |
3706 | ||
1161d367 GV |
3707 | 0, /* VK_SHIFT 0x10 */ |
3708 | 0, /* VK_CONTROL 0x11 */ | |
3709 | 0, /* VK_MENU 0x12 */ | |
e98a93eb | 3710 | "pause", /* VK_PAUSE 0x13 */ |
1161d367 | 3711 | "capslock", /* VK_CAPITAL 0x14 */ |
e98a93eb GV |
3712 | |
3713 | 0, 0, 0, 0, 0, 0, /* 0x15 .. 0x1A */ | |
3714 | ||
1161d367 | 3715 | "escape", /* VK_ESCAPE 0x1B */ |
e98a93eb GV |
3716 | |
3717 | 0, 0, 0, 0, /* 0x1C .. 0x1F */ | |
3718 | ||
3719 | 0, /* VK_SPACE 0x20 */ | |
3720 | "prior", /* VK_PRIOR 0x21 */ | |
3721 | "next", /* VK_NEXT 0x22 */ | |
3722 | "end", /* VK_END 0x23 */ | |
3723 | "home", /* VK_HOME 0x24 */ | |
3724 | "left", /* VK_LEFT 0x25 */ | |
3725 | "up", /* VK_UP 0x26 */ | |
3726 | "right", /* VK_RIGHT 0x27 */ | |
3727 | "down", /* VK_DOWN 0x28 */ | |
3728 | "select", /* VK_SELECT 0x29 */ | |
3729 | "print", /* VK_PRINT 0x2A */ | |
3730 | "execute", /* VK_EXECUTE 0x2B */ | |
3731 | "snapshot", /* VK_SNAPSHOT 0x2C */ | |
3732 | "insert", /* VK_INSERT 0x2D */ | |
3733 | "delete", /* VK_DELETE 0x2E */ | |
3734 | "help", /* VK_HELP 0x2F */ | |
3735 | ||
3736 | /* VK_0 thru VK_9 are the same as ASCII '0' thru '9' (0x30 - 0x39) */ | |
3737 | ||
3738 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3739 | ||
3740 | 0, 0, 0, 0, 0, 0, 0, /* 0x3A .. 0x40 */ | |
3741 | ||
3742 | /* VK_A thru VK_Z are the same as ASCII 'A' thru 'Z' (0x41 - 0x5A) */ | |
3743 | ||
3744 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3745 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3746 | 0, 0, 0, 0, 0, 0, 0, 0, | |
3747 | ||
e376f90d RS |
3748 | "lwindow", /* VK_LWIN 0x5B */ |
3749 | "rwindow", /* VK_RWIN 0x5C */ | |
3750 | "apps", /* VK_APPS 0x5D */ | |
e98a93eb GV |
3751 | |
3752 | 0, 0, /* 0x5E .. 0x5F */ | |
3753 | ||
3754 | "kp-0", /* VK_NUMPAD0 0x60 */ | |
3755 | "kp-1", /* VK_NUMPAD1 0x61 */ | |
3756 | "kp-2", /* VK_NUMPAD2 0x62 */ | |
3757 | "kp-3", /* VK_NUMPAD3 0x63 */ | |
3758 | "kp-4", /* VK_NUMPAD4 0x64 */ | |
3759 | "kp-5", /* VK_NUMPAD5 0x65 */ | |
3760 | "kp-6", /* VK_NUMPAD6 0x66 */ | |
3761 | "kp-7", /* VK_NUMPAD7 0x67 */ | |
3762 | "kp-8", /* VK_NUMPAD8 0x68 */ | |
3763 | "kp-9", /* VK_NUMPAD9 0x69 */ | |
3764 | "kp-multiply", /* VK_MULTIPLY 0x6A */ | |
3765 | "kp-add", /* VK_ADD 0x6B */ | |
3766 | "kp-separator", /* VK_SEPARATOR 0x6C */ | |
3767 | "kp-subtract", /* VK_SUBTRACT 0x6D */ | |
3768 | "kp-decimal", /* VK_DECIMAL 0x6E */ | |
3769 | "kp-divide", /* VK_DIVIDE 0x6F */ | |
3770 | "f1", /* VK_F1 0x70 */ | |
3771 | "f2", /* VK_F2 0x71 */ | |
3772 | "f3", /* VK_F3 0x72 */ | |
3773 | "f4", /* VK_F4 0x73 */ | |
3774 | "f5", /* VK_F5 0x74 */ | |
3775 | "f6", /* VK_F6 0x75 */ | |
3776 | "f7", /* VK_F7 0x76 */ | |
3777 | "f8", /* VK_F8 0x77 */ | |
3778 | "f9", /* VK_F9 0x78 */ | |
3779 | "f10", /* VK_F10 0x79 */ | |
3780 | "f11", /* VK_F11 0x7A */ | |
3781 | "f12", /* VK_F12 0x7B */ | |
3782 | "f13", /* VK_F13 0x7C */ | |
3783 | "f14", /* VK_F14 0x7D */ | |
3784 | "f15", /* VK_F15 0x7E */ | |
3785 | "f16", /* VK_F16 0x7F */ | |
3786 | "f17", /* VK_F17 0x80 */ | |
3787 | "f18", /* VK_F18 0x81 */ | |
3788 | "f19", /* VK_F19 0x82 */ | |
3789 | "f20", /* VK_F20 0x83 */ | |
3790 | "f21", /* VK_F21 0x84 */ | |
3791 | "f22", /* VK_F22 0x85 */ | |
3792 | "f23", /* VK_F23 0x86 */ | |
3793 | "f24", /* VK_F24 0x87 */ | |
3794 | ||
3795 | 0, 0, 0, 0, /* 0x88 .. 0x8B */ | |
3796 | 0, 0, 0, 0, /* 0x8C .. 0x8F */ | |
3797 | ||
3798 | "kp-numlock", /* VK_NUMLOCK 0x90 */ | |
3799 | "scroll", /* VK_SCROLL 0x91 */ | |
3800 | ||
e376f90d RS |
3801 | "kp-space", /* VK_NUMPAD_CLEAR 0x92 */ |
3802 | "kp-enter", /* VK_NUMPAD_ENTER 0x93 */ | |
3803 | "kp-prior", /* VK_NUMPAD_PRIOR 0x94 */ | |
3804 | "kp-next", /* VK_NUMPAD_NEXT 0x95 */ | |
3805 | "kp-end", /* VK_NUMPAD_END 0x96 */ | |
3806 | "kp-home", /* VK_NUMPAD_HOME 0x97 */ | |
3807 | "kp-left", /* VK_NUMPAD_LEFT 0x98 */ | |
3808 | "kp-up", /* VK_NUMPAD_UP 0x99 */ | |
3809 | "kp-right", /* VK_NUMPAD_RIGHT 0x9A */ | |
3810 | "kp-down", /* VK_NUMPAD_DOWN 0x9B */ | |
3811 | "kp-insert", /* VK_NUMPAD_INSERT 0x9C */ | |
3812 | "kp-delete", /* VK_NUMPAD_DELETE 0x9D */ | |
3813 | ||
3814 | 0, 0, /* 0x9E .. 0x9F */ | |
3815 | ||
e98a93eb GV |
3816 | /* |
3817 | * VK_L* & VK_R* - left and right Alt, Ctrl and Shift virtual keys. | |
e8886a1d | 3818 | * Used only as parameters to GetAsyncKeyState and GetKeyState. |
e98a93eb GV |
3819 | * No other API or message will distinguish left and right keys this way. |
3820 | */ | |
3821 | /* 0xA0 .. 0xEF */ | |
3822 | ||
3823 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3824 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3825 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3826 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3827 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
3828 | ||
3829 | /* 0xF0 .. 0xF5 */ | |
3830 | ||
3831 | 0, 0, 0, 0, 0, 0, | |
3832 | ||
3833 | "attn", /* VK_ATTN 0xF6 */ | |
3834 | "crsel", /* VK_CRSEL 0xF7 */ | |
3835 | "exsel", /* VK_EXSEL 0xF8 */ | |
3836 | "ereof", /* VK_EREOF 0xF9 */ | |
3837 | "play", /* VK_PLAY 0xFA */ | |
3838 | "zoom", /* VK_ZOOM 0xFB */ | |
3839 | "noname", /* VK_NONAME 0xFC */ | |
3840 | "pa1", /* VK_PA1 0xFD */ | |
3841 | "oem_clear", /* VK_OEM_CLEAR 0xFE */ | |
1161d367 | 3842 | 0 /* 0xFF */ |
e98a93eb GV |
3843 | }; |
3844 | ||
04f215f0 | 3845 | #else /* not HAVE_NTGUI */ |
e98a93eb | 3846 | |
37cd9f30 KH |
3847 | #ifdef XK_kana_A |
3848 | static char *lispy_kana_keys[] = | |
3849 | { | |
3850 | /* X Keysym value */ | |
3851 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x400 .. 0x40f */ | |
3852 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x410 .. 0x41f */ | |
3853 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x420 .. 0x42f */ | |
3854 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x430 .. 0x43f */ | |
3855 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x440 .. 0x44f */ | |
3856 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x450 .. 0x45f */ | |
3857 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x460 .. 0x46f */ | |
3858 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,"overline",0, | |
3859 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x480 .. 0x48f */ | |
3860 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x490 .. 0x49f */ | |
3861 | 0, "kana-fullstop", "kana-openingbracket", "kana-closingbracket", | |
3862 | "kana-comma", "kana-conjunctive", "kana-WO", "kana-a", | |
3863 | "kana-i", "kana-u", "kana-e", "kana-o", | |
3864 | "kana-ya", "kana-yu", "kana-yo", "kana-tsu", | |
3865 | "prolongedsound", "kana-A", "kana-I", "kana-U", | |
3866 | "kana-E", "kana-O", "kana-KA", "kana-KI", | |
3867 | "kana-KU", "kana-KE", "kana-KO", "kana-SA", | |
3868 | "kana-SHI", "kana-SU", "kana-SE", "kana-SO", | |
3869 | "kana-TA", "kana-CHI", "kana-TSU", "kana-TE", | |
3870 | "kana-TO", "kana-NA", "kana-NI", "kana-NU", | |
3871 | "kana-NE", "kana-NO", "kana-HA", "kana-HI", | |
3872 | "kana-FU", "kana-HE", "kana-HO", "kana-MA", | |
3873 | "kana-MI", "kana-MU", "kana-ME", "kana-MO", | |
3874 | "kana-YA", "kana-YU", "kana-YO", "kana-RA", | |
3875 | "kana-RI", "kana-RU", "kana-RE", "kana-RO", | |
3876 | "kana-WA", "kana-N", "voicedsound", "semivoicedsound", | |
3877 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4e0 .. 0x4ef */ | |
3878 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4f0 .. 0x4ff */ | |
3879 | }; | |
3880 | #endif /* XK_kana_A */ | |
3881 | ||
04f215f0 RS |
3882 | #define FUNCTION_KEY_OFFSET 0xff00 |
3883 | ||
284f4730 JB |
3884 | /* You'll notice that this table is arranged to be conveniently |
3885 | indexed by X Windows keysym values. */ | |
3886 | static char *lispy_function_keys[] = | |
3887 | { | |
3888 | /* X Keysym value */ | |
3889 | ||
75045dcb RS |
3890 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff00...0f */ |
3891 | "backspace", "tab", "linefeed", "clear", | |
3892 | 0, "return", 0, 0, | |
3893 | 0, 0, 0, "pause", /* 0xff10...1f */ | |
3894 | 0, 0, 0, 0, 0, 0, 0, "escape", | |
86e5706b | 3895 | 0, 0, 0, 0, |
75045dcb RS |
3896 | 0, "kanji", "muhenkan", "henkan", /* 0xff20...2f */ |
3897 | "romaji", "hiragana", "katakana", "hiragana-katakana", | |
3898 | "zenkaku", "hankaku", "zenkaku-hankaku", "touroku", | |
3899 | "massyo", "kana-lock", "kana-shift", "eisu-shift", | |
3900 | "eisu-toggle", /* 0xff30...3f */ | |
3901 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
86e5706b RS |
3902 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff40...4f */ |
3903 | ||
75045dcb RS |
3904 | "home", "left", "up", "right", /* 0xff50 */ /* IsCursorKey */ |
3905 | "down", "prior", "next", "end", | |
3906 | "begin", 0, 0, 0, 0, 0, 0, 0, | |
284f4730 JB |
3907 | "select", /* 0xff60 */ /* IsMiscFunctionKey */ |
3908 | "print", | |
3909 | "execute", | |
3910 | "insert", | |
3911 | 0, /* 0xff64 */ | |
3912 | "undo", | |
3913 | "redo", | |
3914 | "menu", | |
3915 | "find", | |
3916 | "cancel", | |
3917 | "help", | |
3918 | "break", /* 0xff6b */ | |
3919 | ||
75045dcb RS |
3920 | 0, 0, 0, 0, |
3921 | 0, 0, 0, 0, "backtab", 0, 0, 0, /* 0xff70... */ | |
3922 | 0, 0, 0, 0, 0, 0, 0, "kp-numlock", /* 0xff78... */ | |
284f4730 JB |
3923 | "kp-space", /* 0xff80 */ /* IsKeypadKey */ |
3924 | 0, 0, 0, 0, 0, 0, 0, 0, | |
3925 | "kp-tab", /* 0xff89 */ | |
3926 | 0, 0, 0, | |
3927 | "kp-enter", /* 0xff8d */ | |
3928 | 0, 0, 0, | |
3929 | "kp-f1", /* 0xff91 */ | |
3930 | "kp-f2", | |
3931 | "kp-f3", | |
3932 | "kp-f4", | |
872157e7 RS |
3933 | "kp-home", /* 0xff95 */ |
3934 | "kp-left", | |
3935 | "kp-up", | |
3936 | "kp-right", | |
3937 | "kp-down", | |
3938 | "kp-prior", /* kp-page-up */ | |
3939 | "kp-next", /* kp-page-down */ | |
3940 | "kp-end", | |
3941 | "kp-begin", | |
3942 | "kp-insert", | |
3943 | "kp-delete", | |
3944 | 0, /* 0xffa0 */ | |
3945 | 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
284f4730 JB |
3946 | "kp-multiply", /* 0xffaa */ |
3947 | "kp-add", | |
3948 | "kp-separator", | |
3949 | "kp-subtract", | |
3950 | "kp-decimal", | |
3951 | "kp-divide", /* 0xffaf */ | |
3952 | "kp-0", /* 0xffb0 */ | |
3953 | "kp-1", "kp-2", "kp-3", "kp-4", "kp-5", "kp-6", "kp-7", "kp-8", "kp-9", | |
3954 | 0, /* 0xffba */ | |
3955 | 0, 0, | |
3956 | "kp-equal", /* 0xffbd */ | |
3957 | "f1", /* 0xffbe */ /* IsFunctionKey */ | |
86e5706b RS |
3958 | "f2", |
3959 | "f3", "f4", "f5", "f6", "f7", "f8", "f9", "f10", /* 0xffc0 */ | |
3960 | "f11", "f12", "f13", "f14", "f15", "f16", "f17", "f18", | |
3961 | "f19", "f20", "f21", "f22", "f23", "f24", "f25", "f26", /* 0xffd0 */ | |
3962 | "f27", "f28", "f29", "f30", "f31", "f32", "f33", "f34", | |
3963 | "f35", 0, 0, 0, 0, 0, 0, 0, /* 0xffe0 */ | |
3964 | 0, 0, 0, 0, 0, 0, 0, 0, | |
3965 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfff0 */ | |
3966 | 0, 0, 0, 0, 0, 0, 0, "delete" | |
04f215f0 | 3967 | }; |
284f4730 | 3968 | |
04f215f0 RS |
3969 | /* ISO 9995 Function and Modifier Keys; the first byte is 0xFE. */ |
3970 | #define ISO_FUNCTION_KEY_OFFSET 0xfe00 | |
3971 | ||
3972 | static char *iso_lispy_function_keys[] = | |
3973 | { | |
3974 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe00 */ | |
3975 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe08 */ | |
3976 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe10 */ | |
3977 | 0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe18 */ | |
3978 | "iso-lefttab", /* 0xfe20 */ | |
3979 | "iso-move-line-up", "iso-move-line-down", | |
3980 | "iso-partial-line-up", "iso-partial-line-down", | |
3981 | "iso-partial-space-left", "iso-partial-space-right", | |
3982 | "iso-set-margin-left", "iso-set-margin-right", /* 0xffe27, 28 */ | |
3983 | "iso-release-margin-left", "iso-release-margin-right", | |
3984 | "iso-release-both-margins", | |
3985 | "iso-fast-cursor-left", "iso-fast-cursor-right", | |
3986 | "iso-fast-cursor-up", "iso-fast-cursor-down", | |
3987 | "iso-continuous-underline", "iso-discontinuous-underline", /* 0xfe30, 31 */ | |
3988 | "iso-emphasize", "iso-center-object", "iso-enter", /* ... 0xfe34 */ | |
3989 | }; | |
3990 | ||
3991 | #endif /* not HAVE_NTGUI */ | |
e98a93eb | 3992 | |
df0f2ba1 | 3993 | static char *lispy_mouse_names[] = |
284f4730 JB |
3994 | { |
3995 | "mouse-1", "mouse-2", "mouse-3", "mouse-4", "mouse-5" | |
3996 | }; | |
3997 | ||
07de30b9 GV |
3998 | #ifdef WINDOWSNT |
3999 | /* mouse-wheel events are generated by the wheel on devices such as | |
4000 | the MS Intellimouse. The wheel sits in between the left and right | |
4001 | mouse buttons, and is typically used to scroll or zoom the window | |
4002 | underneath the pointer. mouse-wheel events specify the object on | |
4003 | which they operate, and a delta corresponding to the amount and | |
4004 | direction that the wheel is rotated. Clicking the mouse-wheel | |
4005 | generates a mouse-2 event. */ | |
4006 | static char *lispy_mouse_wheel_names[] = | |
4007 | { | |
4008 | "mouse-wheel" | |
4009 | }; | |
a24dc617 | 4010 | |
07de30b9 GV |
4011 | #endif /* WINDOWSNT */ |
4012 | ||
a24dc617 RS |
4013 | /* drag-n-drop events are generated when a set of selected files are |
4014 | dragged from another application and dropped onto an Emacs window. */ | |
4015 | static char *lispy_drag_n_drop_names[] = | |
4016 | { | |
4017 | "drag-n-drop" | |
4018 | }; | |
4019 | ||
3c370943 | 4020 | /* Scroll bar parts. */ |
4bb994d1 | 4021 | Lisp_Object Qabove_handle, Qhandle, Qbelow_handle; |
7ee32cda GM |
4022 | Lisp_Object Qup, Qdown, Qbottom, Qend_scroll; |
4023 | Lisp_Object Qtop; | |
4bb994d1 | 4024 | |
3c370943 JB |
4025 | /* An array of scroll bar parts, indexed by an enum scroll_bar_part value. */ |
4026 | Lisp_Object *scroll_bar_parts[] = { | |
db08707d | 4027 | &Qabove_handle, &Qhandle, &Qbelow_handle, |
7ee32cda | 4028 | &Qup, &Qdown, &Qtop, &Qbottom, &Qend_scroll |
4bb994d1 JB |
4029 | }; |
4030 | ||
5bf68f6e AS |
4031 | /* User signal events. */ |
4032 | Lisp_Object Qusr1_signal, Qusr2_signal; | |
4033 | ||
4034 | Lisp_Object *lispy_user_signals[] = | |
4035 | { | |
4036 | &Qusr1_signal, &Qusr2_signal | |
4037 | }; | |
4038 | ||
4bb994d1 | 4039 | |
7b4aedb9 | 4040 | /* A vector, indexed by button number, giving the down-going location |
3c370943 | 4041 | of currently depressed buttons, both scroll bar and non-scroll bar. |
7b4aedb9 JB |
4042 | |
4043 | The elements have the form | |
4044 | (BUTTON-NUMBER MODIFIER-MASK . REST) | |
4045 | where REST is the cdr of a position as it would be reported in the event. | |
4046 | ||
4047 | The make_lispy_event function stores positions here to tell the | |
4048 | difference between click and drag events, and to store the starting | |
4049 | location to be included in drag events. */ | |
4050 | ||
4051 | static Lisp_Object button_down_location; | |
88cb0656 | 4052 | |
fbcd35bd JB |
4053 | /* Information about the most recent up-going button event: Which |
4054 | button, what location, and what time. */ | |
4055 | ||
559f9d04 RS |
4056 | static int last_mouse_button; |
4057 | static int last_mouse_x; | |
4058 | static int last_mouse_y; | |
4059 | static unsigned long button_down_time; | |
fbcd35bd | 4060 | |
564dc952 JB |
4061 | /* The maximum time between clicks to make a double-click, |
4062 | or Qnil to disable double-click detection, | |
4063 | or Qt for no time limit. */ | |
4064 | Lisp_Object Vdouble_click_time; | |
fbcd35bd JB |
4065 | |
4066 | /* The number of clicks in this multiple-click. */ | |
4067 | ||
4068 | int double_click_count; | |
4069 | ||
284f4730 JB |
4070 | /* Given a struct input_event, build the lisp event which represents |
4071 | it. If EVENT is 0, build a mouse movement event from the mouse | |
88cb0656 JB |
4072 | movement buffer, which should have a movement event in it. |
4073 | ||
4074 | Note that events must be passed to this function in the order they | |
4075 | are received; this function stores the location of button presses | |
4076 | in order to build drag events when the button is released. */ | |
284f4730 JB |
4077 | |
4078 | static Lisp_Object | |
4079 | make_lispy_event (event) | |
4080 | struct input_event *event; | |
4081 | { | |
79a7046c RS |
4082 | int i; |
4083 | ||
0220c518 | 4084 | switch (SWITCH_ENUM_CAST (event->kind)) |
284f4730 | 4085 | { |
284f4730 JB |
4086 | /* A simple keystroke. */ |
4087 | case ascii_keystroke: | |
86e5706b | 4088 | { |
9343ab07 | 4089 | Lisp_Object lispy_c; |
e9bf89a0 | 4090 | int c = event->code & 0377; |
5a1c6df8 JB |
4091 | /* Turn ASCII characters into control characters |
4092 | when proper. */ | |
4093 | if (event->modifiers & ctrl_modifier) | |
d205953b JB |
4094 | c = make_ctrl_char (c); |
4095 | ||
4096 | /* Add in the other modifier bits. We took care of ctrl_modifier | |
4097 | just above, and the shift key was taken care of by the X code, | |
4098 | and applied to control characters by make_ctrl_char. */ | |
86e5706b RS |
4099 | c |= (event->modifiers |
4100 | & (meta_modifier | alt_modifier | |
4101 | | hyper_modifier | super_modifier)); | |
32454a9f RS |
4102 | /* Distinguish Shift-SPC from SPC. */ |
4103 | if ((event->code & 0377) == 040 | |
4104 | && event->modifiers & shift_modifier) | |
4105 | c |= shift_modifier; | |
559f9d04 | 4106 | button_down_time = 0; |
bb9e9bed | 4107 | XSETFASTINT (lispy_c, c); |
9343ab07 | 4108 | return lispy_c; |
86e5706b | 4109 | } |
284f4730 JB |
4110 | |
4111 | /* A function key. The symbol may need to have modifier prefixes | |
4112 | tacked onto it. */ | |
4113 | case non_ascii_keystroke: | |
559f9d04 | 4114 | button_down_time = 0; |
e9bf89a0 RS |
4115 | |
4116 | for (i = 0; i < sizeof (lispy_accent_codes) / sizeof (int); i++) | |
4117 | if (event->code == lispy_accent_codes[i]) | |
4118 | return modify_event_symbol (i, | |
4119 | event->modifiers, | |
80e4aa30 | 4120 | Qfunction_key, Qnil, |
e9bf89a0 RS |
4121 | lispy_accent_keys, &accent_key_syms, |
4122 | (sizeof (lispy_accent_keys) | |
4123 | / sizeof (lispy_accent_keys[0]))); | |
4124 | ||
270a208f | 4125 | /* Handle system-specific keysyms. */ |
80e4aa30 RS |
4126 | if (event->code & (1 << 28)) |
4127 | { | |
4128 | /* We need to use an alist rather than a vector as the cache | |
4129 | since we can't make a vector long enuf. */ | |
142e6c73 KH |
4130 | if (NILP (current_kboard->system_key_syms)) |
4131 | current_kboard->system_key_syms = Fcons (Qnil, Qnil); | |
2c834fb3 | 4132 | return modify_event_symbol (event->code, |
80e4aa30 | 4133 | event->modifiers, |
7c97ffdc KH |
4134 | Qfunction_key, |
4135 | current_kboard->Vsystem_key_alist, | |
142e6c73 KH |
4136 | 0, ¤t_kboard->system_key_syms, |
4137 | (unsigned)-1); | |
80e4aa30 RS |
4138 | } |
4139 | ||
37cd9f30 KH |
4140 | #ifdef XK_kana_A |
4141 | if (event->code >= 0x400 && event->code < 0x500) | |
4142 | return modify_event_symbol (event->code - 0x400, | |
4143 | event->modifiers & ~shift_modifier, | |
4144 | Qfunction_key, Qnil, | |
4145 | lispy_kana_keys, &func_key_syms, | |
4146 | (sizeof (lispy_kana_keys) | |
4147 | / sizeof (lispy_kana_keys[0]))); | |
4148 | #endif /* XK_kana_A */ | |
4149 | ||
111c4138 | 4150 | #ifdef ISO_FUNCTION_KEY_OFFSET |
04f215f0 RS |
4151 | if (event->code < FUNCTION_KEY_OFFSET |
4152 | && event->code >= ISO_FUNCTION_KEY_OFFSET) | |
4153 | return modify_event_symbol (event->code - ISO_FUNCTION_KEY_OFFSET, | |
4154 | event->modifiers, | |
4155 | Qfunction_key, Qnil, | |
4156 | iso_lispy_function_keys, &func_key_syms, | |
4157 | (sizeof (iso_lispy_function_keys) | |
4158 | / sizeof (iso_lispy_function_keys[0]))); | |
4159 | else | |
111c4138 | 4160 | #endif |
04f215f0 RS |
4161 | return modify_event_symbol (event->code - FUNCTION_KEY_OFFSET, |
4162 | event->modifiers, | |
4163 | Qfunction_key, Qnil, | |
4164 | lispy_function_keys, &func_key_syms, | |
4165 | (sizeof (lispy_function_keys) | |
4166 | / sizeof (lispy_function_keys[0]))); | |
284f4730 | 4167 | |
514354e9 | 4168 | #ifdef HAVE_MOUSE |
df0f2ba1 | 4169 | /* A mouse click. Figure out where it is, decide whether it's |
88cb0656 | 4170 | a press, click or drag, and build the appropriate structure. */ |
284f4730 | 4171 | case mouse_click: |
7ee32cda | 4172 | #ifndef USE_TOOLKIT_SCROLL_BARS |
3c370943 | 4173 | case scroll_bar_click: |
7ee32cda | 4174 | #endif |
284f4730 | 4175 | { |
e9bf89a0 | 4176 | int button = event->code; |
559f9d04 | 4177 | int is_double; |
7b4aedb9 | 4178 | Lisp_Object position; |
dbc4e1c1 JB |
4179 | Lisp_Object *start_pos_ptr; |
4180 | Lisp_Object start_pos; | |
284f4730 | 4181 | |
7b4aedb9 | 4182 | if (button < 0 || button >= NUM_MOUSE_BUTTONS) |
88cb0656 JB |
4183 | abort (); |
4184 | ||
7b4aedb9 JB |
4185 | /* Build the position as appropriate for this mouse click. */ |
4186 | if (event->kind == mouse_click) | |
284f4730 | 4187 | { |
7b4aedb9 | 4188 | int part; |
598a9fa7 | 4189 | FRAME_PTR f = XFRAME (event->frame_or_window); |
0aafc975 | 4190 | Lisp_Object window; |
7b4aedb9 | 4191 | Lisp_Object posn; |
7ee32cda | 4192 | Lisp_Object string_info = Qnil; |
9e20143a RS |
4193 | int row, column; |
4194 | ||
5da3133a RS |
4195 | /* Ignore mouse events that were made on frame that |
4196 | have been deleted. */ | |
4197 | if (! FRAME_LIVE_P (f)) | |
4198 | return Qnil; | |
4199 | ||
7ee32cda GM |
4200 | /* EVENT->x and EVENT->y are frame-relative pixel |
4201 | coordinates at this place. Under old redisplay, COLUMN | |
4202 | and ROW are set to frame relative glyph coordinates | |
4203 | which are then used to determine whether this click is | |
4204 | in a menu (non-toolkit version). */ | |
4205 | pixel_to_glyph_coords (f, XINT (event->x), XINT (event->y), | |
4206 | &column, &row, NULL, 1); | |
7b4aedb9 | 4207 | |
eef045bf RS |
4208 | #ifndef USE_X_TOOLKIT |
4209 | /* In the non-toolkit version, clicks on the menu bar | |
4210 | are ordinary button events in the event buffer. | |
4211 | Distinguish them, and invoke the menu. | |
4212 | ||
4213 | (In the toolkit version, the toolkit handles the menu bar | |
4214 | and Emacs doesn't know about it until after the user | |
4215 | makes a selection.) */ | |
2ee250ec RS |
4216 | if (row >= 0 && row < FRAME_MENU_BAR_LINES (f) |
4217 | && (event->modifiers & down_modifier)) | |
bb936752 | 4218 | { |
b7c49376 | 4219 | Lisp_Object items, item; |
0a0e8fe6 RS |
4220 | int hpos; |
4221 | int i; | |
4222 | ||
2ee250ec | 4223 | #if 0 |
0a0e8fe6 RS |
4224 | /* Activate the menu bar on the down event. If the |
4225 | up event comes in before the menu code can deal with it, | |
4226 | just ignore it. */ | |
4227 | if (! (event->modifiers & down_modifier)) | |
4228 | return Qnil; | |
2ee250ec | 4229 | #endif |
0aafc975 | 4230 | |
7ee32cda | 4231 | /* Find the menu bar item under `column'. */ |
f2ae6b3f | 4232 | item = Qnil; |
5ec75a55 | 4233 | items = FRAME_MENU_BAR_ITEMS (f); |
35b3402f | 4234 | for (i = 0; i < XVECTOR (items)->size; i += 4) |
5ec75a55 RS |
4235 | { |
4236 | Lisp_Object pos, string; | |
b7c49376 | 4237 | string = XVECTOR (items)->contents[i + 1]; |
35b3402f | 4238 | pos = XVECTOR (items)->contents[i + 3]; |
b7c49376 RS |
4239 | if (NILP (string)) |
4240 | break; | |
9e20143a RS |
4241 | if (column >= XINT (pos) |
4242 | && column < XINT (pos) + XSTRING (string)->size) | |
b7c49376 RS |
4243 | { |
4244 | item = XVECTOR (items)->contents[i]; | |
4245 | break; | |
4246 | } | |
5ec75a55 | 4247 | } |
9e20143a | 4248 | |
7ee32cda GM |
4249 | /* ELisp manual 2.4b says (x y) are window relative but |
4250 | code says they are frame-relative. */ | |
5ec75a55 RS |
4251 | position |
4252 | = Fcons (event->frame_or_window, | |
4253 | Fcons (Qmenu_bar, | |
4254 | Fcons (Fcons (event->x, event->y), | |
4255 | Fcons (make_number (event->timestamp), | |
4256 | Qnil)))); | |
4257 | ||
b7c49376 | 4258 | return Fcons (item, Fcons (position, Qnil)); |
5ec75a55 | 4259 | } |
eef045bf | 4260 | #endif /* not USE_X_TOOLKIT */ |
0aafc975 | 4261 | |
7ee32cda GM |
4262 | /* Set `window' to the window under frame pixel coordinates |
4263 | event->x/event->y. */ | |
4264 | window = window_from_coordinates (f, XINT (event->x), | |
4265 | XINT (event->y), &part, 0); | |
0aafc975 | 4266 | |
8c18cbfb | 4267 | if (!WINDOWP (window)) |
78ced549 RS |
4268 | { |
4269 | window = event->frame_or_window; | |
4270 | posn = Qnil; | |
4271 | } | |
284f4730 | 4272 | else |
7b4aedb9 | 4273 | { |
7ee32cda GM |
4274 | /* It's a click in window window at frame coordinates |
4275 | event->x/ event->y. */ | |
4276 | struct window *w = XWINDOW (window); | |
4277 | ||
4278 | /* Get window relative coordinates. Original code | |
4279 | `rounded' this to glyph boundaries. */ | |
4280 | int wx = FRAME_TO_WINDOW_PIXEL_X (w, XINT (event->x)); | |
4281 | int wy = FRAME_TO_WINDOW_PIXEL_Y (w, XINT (event->y)); | |
4282 | ||
4283 | /* Set event coordinates to window-relative coordinates | |
4284 | for constructing the Lisp event below. */ | |
4285 | XSETINT (event->x, wx); | |
4286 | XSETINT (event->y, wy); | |
4287 | ||
4288 | if (part == 1 || part == 3) | |
4289 | { | |
4290 | /* Mode line or top line. Look for a string under | |
4291 | the mouse that may have a `local-map' property. */ | |
4292 | Lisp_Object string; | |
4293 | int charpos; | |
4294 | ||
045dee35 | 4295 | posn = part == 1 ? Qmode_line : Qheader_line; |
7ee32cda GM |
4296 | string = mode_line_string (w, wx, wy, part == 1, &charpos); |
4297 | if (STRINGP (string)) | |
4298 | string_info = Fcons (string, make_number (charpos)); | |
4299 | } | |
7b4aedb9 JB |
4300 | else if (part == 2) |
4301 | posn = Qvertical_line; | |
4302 | else | |
7ee32cda | 4303 | XSETINT (posn, buffer_posn_from_coords (w, &wx, &wy)); |
7b4aedb9 JB |
4304 | } |
4305 | ||
5ec75a55 RS |
4306 | position |
4307 | = Fcons (window, | |
4308 | Fcons (posn, | |
4309 | Fcons (Fcons (event->x, event->y), | |
4310 | Fcons (make_number (event->timestamp), | |
7ee32cda GM |
4311 | (NILP (string_info) |
4312 | ? Qnil | |
4313 | : Fcons (string_info, Qnil)))))); | |
284f4730 | 4314 | } |
7ee32cda | 4315 | #ifndef USE_TOOLKIT_SCROLL_BARS |
7b4aedb9 | 4316 | else |
88cb0656 | 4317 | { |
7ee32cda | 4318 | /* It's a scrollbar click. */ |
9e20143a RS |
4319 | Lisp_Object window; |
4320 | Lisp_Object portion_whole; | |
4321 | Lisp_Object part; | |
4322 | ||
4323 | window = event->frame_or_window; | |
4324 | portion_whole = Fcons (event->x, event->y); | |
4325 | part = *scroll_bar_parts[(int) event->part]; | |
7b4aedb9 | 4326 | |
db08707d RS |
4327 | position |
4328 | = Fcons (window, | |
4329 | Fcons (Qvertical_scroll_bar, | |
4330 | Fcons (portion_whole, | |
4331 | Fcons (make_number (event->timestamp), | |
4332 | Fcons (part, Qnil))))); | |
88cb0656 | 4333 | } |
7ee32cda | 4334 | #endif /* not USE_TOOLKIT_SCROLL_BARS */ |
88cb0656 | 4335 | |
dbc4e1c1 JB |
4336 | start_pos_ptr = &XVECTOR (button_down_location)->contents[button]; |
4337 | ||
4338 | start_pos = *start_pos_ptr; | |
4339 | *start_pos_ptr = Qnil; | |
7b4aedb9 | 4340 | |
559f9d04 RS |
4341 | is_double = (button == last_mouse_button |
4342 | && XINT (event->x) == last_mouse_x | |
4343 | && XINT (event->y) == last_mouse_y | |
4344 | && button_down_time != 0 | |
4345 | && (EQ (Vdouble_click_time, Qt) | |
4346 | || (INTEGERP (Vdouble_click_time) | |
4347 | && ((int)(event->timestamp - button_down_time) | |
4348 | < XINT (Vdouble_click_time))))); | |
4349 | last_mouse_button = button; | |
4350 | last_mouse_x = XINT (event->x); | |
4351 | last_mouse_y = XINT (event->y); | |
4352 | ||
7b4aedb9 JB |
4353 | /* If this is a button press, squirrel away the location, so |
4354 | we can decide later whether it was a click or a drag. */ | |
4355 | if (event->modifiers & down_modifier) | |
559f9d04 RS |
4356 | { |
4357 | if (is_double) | |
4358 | { | |
4359 | double_click_count++; | |
4360 | event->modifiers |= ((double_click_count > 2) | |
4361 | ? triple_modifier | |
4362 | : double_modifier); | |
4363 | } | |
4364 | else | |
4365 | double_click_count = 1; | |
4366 | button_down_time = event->timestamp; | |
4367 | *start_pos_ptr = Fcopy_alist (position); | |
4368 | } | |
7b4aedb9 | 4369 | |
88cb0656 | 4370 | /* Now we're releasing a button - check the co-ordinates to |
7b4aedb9 | 4371 | see if this was a click or a drag. */ |
88cb0656 JB |
4372 | else if (event->modifiers & up_modifier) |
4373 | { | |
48e416d4 RS |
4374 | /* If we did not see a down before this up, |
4375 | ignore the up. Probably this happened because | |
4376 | the down event chose a menu item. | |
4377 | It would be an annoyance to treat the release | |
4378 | of the button that chose the menu item | |
4379 | as a separate event. */ | |
4380 | ||
8c18cbfb | 4381 | if (!CONSP (start_pos)) |
48e416d4 RS |
4382 | return Qnil; |
4383 | ||
88cb0656 | 4384 | event->modifiers &= ~up_modifier; |
48e416d4 | 4385 | #if 0 /* Formerly we treated an up with no down as a click event. */ |
8c18cbfb | 4386 | if (!CONSP (start_pos)) |
dbc4e1c1 JB |
4387 | event->modifiers |= click_modifier; |
4388 | else | |
48e416d4 | 4389 | #endif |
dbc4e1c1 JB |
4390 | { |
4391 | /* The third element of every position should be the (x,y) | |
4392 | pair. */ | |
9b8eb840 | 4393 | Lisp_Object down; |
dbc4e1c1 | 4394 | |
9b8eb840 | 4395 | down = Fnth (make_number (2), start_pos); |
fbcd35bd JB |
4396 | if (EQ (event->x, XCONS (down)->car) |
4397 | && EQ (event->y, XCONS (down)->cdr)) | |
4398 | { | |
bc536d84 | 4399 | event->modifiers |= click_modifier; |
fbcd35bd JB |
4400 | } |
4401 | else | |
4402 | { | |
559f9d04 | 4403 | button_down_time = 0; |
fbcd35bd JB |
4404 | event->modifiers |= drag_modifier; |
4405 | } | |
bc536d84 RS |
4406 | /* Don't check is_double; treat this as multiple |
4407 | if the down-event was multiple. */ | |
4408 | if (double_click_count > 1) | |
4409 | event->modifiers |= ((double_click_count > 2) | |
4410 | ? triple_modifier | |
4411 | : double_modifier); | |
dbc4e1c1 | 4412 | } |
88cb0656 JB |
4413 | } |
4414 | else | |
4415 | /* Every mouse event should either have the down_modifier or | |
7b4aedb9 | 4416 | the up_modifier set. */ |
88cb0656 JB |
4417 | abort (); |
4418 | ||
88cb0656 | 4419 | { |
7b4aedb9 | 4420 | /* Get the symbol we should use for the mouse click. */ |
9b8eb840 KH |
4421 | Lisp_Object head; |
4422 | ||
4423 | head = modify_event_symbol (button, | |
4424 | event->modifiers, | |
4425 | Qmouse_click, Qnil, | |
4426 | lispy_mouse_names, &mouse_syms, | |
4427 | (sizeof (lispy_mouse_names) | |
4428 | / sizeof (lispy_mouse_names[0]))); | |
88cb0656 | 4429 | if (event->modifiers & drag_modifier) |
dbc4e1c1 JB |
4430 | return Fcons (head, |
4431 | Fcons (start_pos, | |
4432 | Fcons (position, | |
4433 | Qnil))); | |
fbcd35bd JB |
4434 | else if (event->modifiers & (double_modifier | triple_modifier)) |
4435 | return Fcons (head, | |
4436 | Fcons (position, | |
4437 | Fcons (make_number (double_click_count), | |
4438 | Qnil))); | |
88cb0656 JB |
4439 | else |
4440 | return Fcons (head, | |
7b4aedb9 | 4441 | Fcons (position, |
88cb0656 JB |
4442 | Qnil)); |
4443 | } | |
284f4730 | 4444 | } |
db08707d | 4445 | |
7ee32cda GM |
4446 | #if USE_TOOLKIT_SCROLL_BARS |
4447 | ||
4448 | /* We don't have down and up events if using toolkit scroll bars, | |
4449 | so make this always a click event. Store in the `part' of | |
4450 | the Lisp event a symbol which maps to the following actions: | |
4451 | ||
4452 | `above_handle' page up | |
4453 | `below_handle' page down | |
4454 | `up' line up | |
4455 | `down' line down | |
4456 | `top' top of buffer | |
4457 | `bottom' bottom of buffer | |
4458 | `handle' thumb has been dragged. | |
4459 | `end-scroll' end of interaction with scroll bar | |
4460 | ||
4461 | The incoming input_event contains in its `part' member an | |
4462 | index of type `enum scroll_bar_part' which we can use as an | |
4463 | index in scroll_bar_parts to get the appropriate symbol. */ | |
4464 | ||
4465 | case scroll_bar_click: | |
4466 | { | |
4467 | Lisp_Object position, head, window, portion_whole, part; | |
4468 | ||
4469 | window = event->frame_or_window; | |
4470 | portion_whole = Fcons (event->x, event->y); | |
4471 | part = *scroll_bar_parts[(int) event->part]; | |
4472 | ||
4473 | position | |
4474 | = Fcons (window, | |
4475 | Fcons (Qvertical_scroll_bar, | |
4476 | Fcons (portion_whole, | |
4477 | Fcons (make_number (event->timestamp), | |
4478 | Fcons (part, Qnil))))); | |
4479 | ||
4480 | /* Always treat scroll bar events as clicks. */ | |
4481 | event->modifiers |= click_modifier; | |
4482 | ||
4483 | /* Get the symbol we should use for the mouse click. */ | |
4484 | head = modify_event_symbol (event->code, | |
4485 | event->modifiers, | |
4486 | Qmouse_click, Qnil, | |
4487 | lispy_mouse_names, &mouse_syms, | |
4488 | (sizeof (lispy_mouse_names) | |
4489 | / sizeof (lispy_mouse_names[0]))); | |
4490 | return Fcons (head, Fcons (position, Qnil)); | |
4491 | } | |
4492 | ||
4493 | #endif /* USE_TOOLKIT_SCROLL_BARS */ | |
4494 | ||
db08707d | 4495 | #ifdef WINDOWSNT |
fbd6baed | 4496 | case w32_scroll_bar_click: |
db08707d RS |
4497 | { |
4498 | int button = event->code; | |
4499 | int is_double; | |
4500 | Lisp_Object position; | |
4501 | Lisp_Object *start_pos_ptr; | |
4502 | Lisp_Object start_pos; | |
4503 | ||
4504 | if (button < 0 || button >= NUM_MOUSE_BUTTONS) | |
4505 | abort (); | |
4506 | ||
4507 | { | |
4508 | Lisp_Object window; | |
4509 | Lisp_Object portion_whole; | |
4510 | Lisp_Object part; | |
4511 | ||
4512 | window = event->frame_or_window; | |
4513 | portion_whole = Fcons (event->x, event->y); | |
4514 | part = *scroll_bar_parts[(int) event->part]; | |
4515 | ||
e8886a1d RS |
4516 | position |
4517 | = Fcons (window, | |
4518 | Fcons (Qvertical_scroll_bar, | |
4519 | Fcons (portion_whole, | |
4520 | Fcons (make_number (event->timestamp), | |
4521 | Fcons (part, Qnil))))); | |
db08707d RS |
4522 | } |
4523 | ||
fbd6baed | 4524 | /* Always treat W32 scroll bar events as clicks. */ |
db08707d RS |
4525 | event->modifiers |= click_modifier; |
4526 | ||
4527 | { | |
4528 | /* Get the symbol we should use for the mouse click. */ | |
4529 | Lisp_Object head; | |
4530 | ||
4531 | head = modify_event_symbol (button, | |
4532 | event->modifiers, | |
4533 | Qmouse_click, Qnil, | |
4534 | lispy_mouse_names, &mouse_syms, | |
4535 | (sizeof (lispy_mouse_names) | |
4536 | / sizeof (lispy_mouse_names[0]))); | |
4537 | return Fcons (head, | |
4538 | Fcons (position, | |
4539 | Qnil)); | |
4540 | } | |
4541 | } | |
07de30b9 GV |
4542 | case mouse_wheel: |
4543 | { | |
4544 | int part; | |
4545 | FRAME_PTR f = XFRAME (event->frame_or_window); | |
4546 | Lisp_Object window; | |
4547 | Lisp_Object posn; | |
4548 | Lisp_Object head, position; | |
4549 | int row, column; | |
4550 | ||
4551 | /* Ignore mouse events that were made on frame that | |
4552 | have been deleted. */ | |
4553 | if (! FRAME_LIVE_P (f)) | |
4554 | return Qnil; | |
4555 | pixel_to_glyph_coords (f, XINT (event->x), XINT (event->y), | |
4556 | &column, &row, NULL, 1); | |
7ee32cda | 4557 | window = window_from_coordinates (f, column, row, &part, 0); |
07de30b9 GV |
4558 | |
4559 | if (!WINDOWP (window)) | |
4560 | { | |
4561 | window = event->frame_or_window; | |
4562 | posn = Qnil; | |
4563 | } | |
4564 | else | |
4565 | { | |
4566 | int pixcolumn, pixrow; | |
4567 | column -= XINT (XWINDOW (window)->left); | |
4568 | row -= XINT (XWINDOW (window)->top); | |
4569 | glyph_to_pixel_coords (f, column, row, &pixcolumn, &pixrow); | |
4570 | XSETINT (event->x, pixcolumn); | |
4571 | XSETINT (event->y, pixrow); | |
4572 | ||
4573 | if (part == 1) | |
4574 | posn = Qmode_line; | |
4575 | else if (part == 2) | |
4576 | posn = Qvertical_line; | |
7ee32cda | 4577 | else if (part == 3) |
045dee35 | 4578 | posn = Qheader_line; |
07de30b9 GV |
4579 | else |
4580 | XSETINT (posn, | |
4581 | buffer_posn_from_coords (XWINDOW (window), | |
4582 | column, row)); | |
4583 | } | |
db08707d | 4584 | |
07de30b9 GV |
4585 | { |
4586 | Lisp_Object head, position; | |
4587 | ||
4588 | position | |
4589 | = Fcons (window, | |
4590 | Fcons (posn, | |
4591 | Fcons (Fcons (event->x, event->y), | |
4592 | Fcons (make_number (event->timestamp), | |
4593 | Qnil)))); | |
4594 | ||
4595 | head = modify_event_symbol (0, event->modifiers, | |
4596 | Qmouse_wheel, Qnil, | |
4597 | lispy_mouse_wheel_names, | |
4598 | &mouse_wheel_syms, 1); | |
4599 | return Fcons (head, | |
4600 | Fcons (position, | |
4601 | Fcons (make_number (event->code), | |
4602 | Qnil))); | |
4603 | } | |
4604 | } | |
4605 | #endif /* WINDOWSNT */ | |
a24dc617 RS |
4606 | |
4607 | case drag_n_drop: | |
4608 | { | |
4609 | int part; | |
4610 | FRAME_PTR f; | |
4611 | Lisp_Object window; | |
4612 | Lisp_Object posn; | |
4613 | Lisp_Object head, position; | |
4614 | Lisp_Object files; | |
4615 | int row, column; | |
4616 | ||
4617 | /* The frame_or_window field should be a cons of the frame in | |
4618 | which the event occurred and a list of the filenames | |
4619 | dropped. */ | |
4620 | if (! CONSP (event->frame_or_window)) | |
4621 | abort (); | |
4622 | ||
4623 | f = XFRAME (XCONS (event->frame_or_window)->car); | |
4624 | files = XCONS (event->frame_or_window)->cdr; | |
4625 | ||
4626 | /* Ignore mouse events that were made on frames that | |
4627 | have been deleted. */ | |
4628 | if (! FRAME_LIVE_P (f)) | |
4629 | return Qnil; | |
4630 | pixel_to_glyph_coords (f, XINT (event->x), XINT (event->y), | |
4631 | &column, &row, NULL, 1); | |
7ee32cda | 4632 | window = window_from_coordinates (f, column, row, &part, 0); |
a24dc617 RS |
4633 | |
4634 | if (!WINDOWP (window)) | |
4635 | { | |
4636 | window = XCONS (event->frame_or_window)->car; | |
4637 | posn = Qnil; | |
4638 | } | |
4639 | else | |
4640 | { | |
7ee32cda GM |
4641 | /* It's an event in window `window' at frame coordinates |
4642 | event->x/ event->y. */ | |
4643 | struct window *w = XWINDOW (window); | |
4644 | ||
4645 | /* Get window relative coordinates. */ | |
4646 | int wx = FRAME_TO_WINDOW_PIXEL_X (w, XINT (event->x)); | |
4647 | int wy = FRAME_TO_WINDOW_PIXEL_Y (w, XINT (event->y)); | |
4648 | ||
4649 | /* Set event coordinates to window-relative coordinates | |
4650 | for constructing the Lisp event below. */ | |
4651 | XSETINT (event->x, wx); | |
4652 | XSETINT (event->y, wy); | |
a24dc617 RS |
4653 | |
4654 | if (part == 1) | |
4655 | posn = Qmode_line; | |
4656 | else if (part == 2) | |
4657 | posn = Qvertical_line; | |
7ee32cda | 4658 | else if (part == 3) |
045dee35 | 4659 | posn = Qheader_line; |
a24dc617 | 4660 | else |
7ee32cda | 4661 | XSETINT (posn, buffer_posn_from_coords (w, &wx, &wy)); |
a24dc617 RS |
4662 | } |
4663 | ||
4664 | { | |
4665 | Lisp_Object head, position; | |
4666 | ||
4667 | position | |
4668 | = Fcons (window, | |
4669 | Fcons (posn, | |
4670 | Fcons (Fcons (event->x, event->y), | |
4671 | Fcons (make_number (event->timestamp), | |
4672 | Qnil)))); | |
4673 | ||
4674 | head = modify_event_symbol (0, event->modifiers, | |
4675 | Qdrag_n_drop, Qnil, | |
4676 | lispy_drag_n_drop_names, | |
4677 | &drag_n_drop_syms, 1); | |
4678 | return Fcons (head, | |
4679 | Fcons (position, | |
4680 | Fcons (files, | |
4681 | Qnil))); | |
4682 | } | |
4683 | } | |
514354e9 | 4684 | #endif /* HAVE_MOUSE */ |
284f4730 | 4685 | |
e98a93eb | 4686 | #if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) |
2470a66f KH |
4687 | case menu_bar_event: |
4688 | /* The event value is in the cdr of the frame_or_window slot. */ | |
4689 | if (!CONSP (event->frame_or_window)) | |
4690 | abort (); | |
4691 | return XCONS (event->frame_or_window)->cdr; | |
4692 | #endif | |
4693 | ||
9ea173e8 | 4694 | case TOOL_BAR_EVENT: |
7ee32cda GM |
4695 | { |
4696 | Lisp_Object key; | |
4697 | if (!CONSP (event->frame_or_window)) | |
4698 | abort (); | |
4699 | key = XCDR (event->frame_or_window); | |
4700 | if (SYMBOLP (key)) | |
4701 | key = apply_modifiers (event->modifiers, key); | |
4702 | return key; | |
4703 | } | |
4704 | ||
5bf68f6e AS |
4705 | case user_signal: |
4706 | /* A user signal. */ | |
4707 | return *lispy_user_signals[event->code]; | |
4708 | ||
284f4730 JB |
4709 | /* The 'kind' field of the event is something we don't recognize. */ |
4710 | default: | |
48e416d4 | 4711 | abort (); |
284f4730 JB |
4712 | } |
4713 | } | |
4714 | ||
514354e9 | 4715 | #ifdef HAVE_MOUSE |
6cbff1cb | 4716 | |
284f4730 | 4717 | static Lisp_Object |
7b4aedb9 | 4718 | make_lispy_movement (frame, bar_window, part, x, y, time) |
ff11dfa1 | 4719 | FRAME_PTR frame; |
7b4aedb9 | 4720 | Lisp_Object bar_window; |
3c370943 | 4721 | enum scroll_bar_part part; |
284f4730 | 4722 | Lisp_Object x, y; |
e5d77022 | 4723 | unsigned long time; |
284f4730 | 4724 | { |
3c370943 | 4725 | /* Is it a scroll bar movement? */ |
7b4aedb9 | 4726 | if (frame && ! NILP (bar_window)) |
4bb994d1 | 4727 | { |
9b8eb840 | 4728 | Lisp_Object part_sym; |
4bb994d1 | 4729 | |
9b8eb840 | 4730 | part_sym = *scroll_bar_parts[(int) part]; |
3c370943 | 4731 | return Fcons (Qscroll_bar_movement, |
7b4aedb9 | 4732 | (Fcons (Fcons (bar_window, |
3c370943 | 4733 | Fcons (Qvertical_scroll_bar, |
4bb994d1 JB |
4734 | Fcons (Fcons (x, y), |
4735 | Fcons (make_number (time), | |
cb5df6ae | 4736 | Fcons (part_sym, |
4bb994d1 JB |
4737 | Qnil))))), |
4738 | Qnil))); | |
4739 | } | |
4740 | ||
4741 | /* Or is it an ordinary mouse movement? */ | |
284f4730 JB |
4742 | else |
4743 | { | |
4bb994d1 | 4744 | int area; |
9e20143a | 4745 | Lisp_Object window; |
4bb994d1 | 4746 | Lisp_Object posn; |
9e20143a | 4747 | |
9e20143a | 4748 | if (frame) |
7ee32cda GM |
4749 | /* It's in a frame; which window on that frame? */ |
4750 | window = window_from_coordinates (frame, XINT (x), XINT (y), &area, 0); | |
9e20143a RS |
4751 | else |
4752 | window = Qnil; | |
4bb994d1 | 4753 | |
8c18cbfb | 4754 | if (WINDOWP (window)) |
4bb994d1 | 4755 | { |
7ee32cda GM |
4756 | struct window *w = XWINDOW (window); |
4757 | int hpos, vpos; | |
4758 | int wx, wy; | |
4759 | int pos; | |
4760 | ||
4761 | /* Get window relative coordinates. */ | |
4762 | wx = FRAME_TO_WINDOW_PIXEL_X (w, XINT (x)); | |
4763 | wy = FRAME_TO_WINDOW_PIXEL_Y (w, XINT (y)); | |
4764 | XSETINT (x, wx); | |
4765 | XSETINT (y, wy); | |
4766 | ||
4bb994d1 JB |
4767 | if (area == 1) |
4768 | posn = Qmode_line; | |
4769 | else if (area == 2) | |
4770 | posn = Qvertical_line; | |
7ee32cda | 4771 | else if (area == 3) |
045dee35 | 4772 | posn = Qheader_line; |
4bb994d1 | 4773 | else |
7ee32cda | 4774 | XSETINT (posn, buffer_posn_from_coords (w, &wx, &wy)); |
4bb994d1 | 4775 | } |
e9bf89a0 RS |
4776 | else if (frame != 0) |
4777 | { | |
18cd2eeb | 4778 | XSETFRAME (window, frame); |
e9bf89a0 RS |
4779 | posn = Qnil; |
4780 | } | |
284f4730 | 4781 | else |
4bb994d1 JB |
4782 | { |
4783 | window = Qnil; | |
4784 | posn = Qnil; | |
bb9e9bed KH |
4785 | XSETFASTINT (x, 0); |
4786 | XSETFASTINT (y, 0); | |
4bb994d1 | 4787 | } |
284f4730 | 4788 | |
4bb994d1 JB |
4789 | return Fcons (Qmouse_movement, |
4790 | Fcons (Fcons (window, | |
4791 | Fcons (posn, | |
4792 | Fcons (Fcons (x, y), | |
4793 | Fcons (make_number (time), | |
4794 | Qnil)))), | |
4795 | Qnil)); | |
4796 | } | |
284f4730 JB |
4797 | } |
4798 | ||
514354e9 | 4799 | #endif /* HAVE_MOUSE */ |
6cbff1cb | 4800 | |
cd21b839 JB |
4801 | /* Construct a switch frame event. */ |
4802 | static Lisp_Object | |
4803 | make_lispy_switch_frame (frame) | |
4804 | Lisp_Object frame; | |
4805 | { | |
4806 | return Fcons (Qswitch_frame, Fcons (frame, Qnil)); | |
4807 | } | |
0a7f1fc0 JB |
4808 | \f |
4809 | /* Manipulating modifiers. */ | |
284f4730 | 4810 | |
0a7f1fc0 | 4811 | /* Parse the name of SYMBOL, and return the set of modifiers it contains. |
284f4730 | 4812 | |
0a7f1fc0 JB |
4813 | If MODIFIER_END is non-zero, set *MODIFIER_END to the position in |
4814 | SYMBOL's name of the end of the modifiers; the string from this | |
4815 | position is the unmodified symbol name. | |
284f4730 | 4816 | |
0a7f1fc0 | 4817 | This doesn't use any caches. */ |
6da3dd3a | 4818 | |
0a7f1fc0 JB |
4819 | static int |
4820 | parse_modifiers_uncached (symbol, modifier_end) | |
284f4730 | 4821 | Lisp_Object symbol; |
0a7f1fc0 | 4822 | int *modifier_end; |
284f4730 JB |
4823 | { |
4824 | struct Lisp_String *name; | |
4825 | int i; | |
4826 | int modifiers; | |
284f4730 JB |
4827 | |
4828 | CHECK_SYMBOL (symbol, 1); | |
df0f2ba1 | 4829 | |
284f4730 JB |
4830 | modifiers = 0; |
4831 | name = XSYMBOL (symbol)->name; | |
4832 | ||
fc932ac6 | 4833 | for (i = 0; i+2 <= STRING_BYTES (name); ) |
6da3dd3a RS |
4834 | { |
4835 | int this_mod_end = 0; | |
4836 | int this_mod = 0; | |
284f4730 | 4837 | |
6da3dd3a RS |
4838 | /* See if the name continues with a modifier word. |
4839 | Check that the word appears, but don't check what follows it. | |
4840 | Set this_mod and this_mod_end to record what we find. */ | |
fce33686 | 4841 | |
6da3dd3a RS |
4842 | switch (name->data[i]) |
4843 | { | |
4844 | #define SINGLE_LETTER_MOD(BIT) \ | |
4845 | (this_mod_end = i + 1, this_mod = BIT) | |
4846 | ||
6da3dd3a RS |
4847 | case 'A': |
4848 | SINGLE_LETTER_MOD (alt_modifier); | |
4849 | break; | |
284f4730 | 4850 | |
6da3dd3a RS |
4851 | case 'C': |
4852 | SINGLE_LETTER_MOD (ctrl_modifier); | |
4853 | break; | |
284f4730 | 4854 | |
6da3dd3a RS |
4855 | case 'H': |
4856 | SINGLE_LETTER_MOD (hyper_modifier); | |
4857 | break; | |
4858 | ||
6da3dd3a RS |
4859 | case 'M': |
4860 | SINGLE_LETTER_MOD (meta_modifier); | |
4861 | break; | |
4862 | ||
6da3dd3a RS |
4863 | case 'S': |
4864 | SINGLE_LETTER_MOD (shift_modifier); | |
4865 | break; | |
4866 | ||
4867 | case 's': | |
6da3dd3a RS |
4868 | SINGLE_LETTER_MOD (super_modifier); |
4869 | break; | |
4870 | ||
0a7f1fc0 | 4871 | #undef SINGLE_LETTER_MOD |
6da3dd3a RS |
4872 | } |
4873 | ||
4874 | /* If we found no modifier, stop looking for them. */ | |
4875 | if (this_mod_end == 0) | |
4876 | break; | |
4877 | ||
4878 | /* Check there is a dash after the modifier, so that it | |
4879 | really is a modifier. */ | |
fc932ac6 RS |
4880 | if (this_mod_end >= STRING_BYTES (name) |
4881 | || name->data[this_mod_end] != '-') | |
6da3dd3a RS |
4882 | break; |
4883 | ||
4884 | /* This modifier is real; look for another. */ | |
4885 | modifiers |= this_mod; | |
4886 | i = this_mod_end + 1; | |
4887 | } | |
284f4730 | 4888 | |
0a7f1fc0 | 4889 | /* Should we include the `click' modifier? */ |
fbcd35bd JB |
4890 | if (! (modifiers & (down_modifier | drag_modifier |
4891 | | double_modifier | triple_modifier)) | |
fc932ac6 | 4892 | && i + 7 == STRING_BYTES (name) |
4bb994d1 | 4893 | && strncmp (name->data + i, "mouse-", 6) == 0 |
6569cc8d | 4894 | && ('0' <= name->data[i + 6] && name->data[i + 6] <= '9')) |
0a7f1fc0 JB |
4895 | modifiers |= click_modifier; |
4896 | ||
4897 | if (modifier_end) | |
4898 | *modifier_end = i; | |
4899 | ||
4900 | return modifiers; | |
4901 | } | |
4902 | ||
0a7f1fc0 JB |
4903 | /* Return a symbol whose name is the modifier prefixes for MODIFIERS |
4904 | prepended to the string BASE[0..BASE_LEN-1]. | |
4905 | This doesn't use any caches. */ | |
4906 | static Lisp_Object | |
301738ed | 4907 | apply_modifiers_uncached (modifiers, base, base_len, base_len_byte) |
0a7f1fc0 JB |
4908 | int modifiers; |
4909 | char *base; | |
301738ed | 4910 | int base_len, base_len_byte; |
0a7f1fc0 JB |
4911 | { |
4912 | /* Since BASE could contain nulls, we can't use intern here; we have | |
4913 | to use Fintern, which expects a genuine Lisp_String, and keeps a | |
4914 | reference to it. */ | |
301738ed RS |
4915 | char *new_mods |
4916 | = (char *) alloca (sizeof ("A-C-H-M-S-s-down-drag-double-triple-")); | |
0a7f1fc0 | 4917 | int mod_len; |
284f4730 | 4918 | |
284f4730 | 4919 | { |
0a7f1fc0 JB |
4920 | char *p = new_mods; |
4921 | ||
4922 | /* Only the event queue may use the `up' modifier; it should always | |
4923 | be turned into a click or drag event before presented to lisp code. */ | |
4924 | if (modifiers & up_modifier) | |
4925 | abort (); | |
4926 | ||
4927 | if (modifiers & alt_modifier) { *p++ = 'A'; *p++ = '-'; } | |
4928 | if (modifiers & ctrl_modifier) { *p++ = 'C'; *p++ = '-'; } | |
4929 | if (modifiers & hyper_modifier) { *p++ = 'H'; *p++ = '-'; } | |
4930 | if (modifiers & meta_modifier) { *p++ = 'M'; *p++ = '-'; } | |
4931 | if (modifiers & shift_modifier) { *p++ = 'S'; *p++ = '-'; } | |
86e5706b | 4932 | if (modifiers & super_modifier) { *p++ = 's'; *p++ = '-'; } |
fbcd35bd JB |
4933 | if (modifiers & double_modifier) { strcpy (p, "double-"); p += 7; } |
4934 | if (modifiers & triple_modifier) { strcpy (p, "triple-"); p += 7; } | |
559f9d04 RS |
4935 | if (modifiers & down_modifier) { strcpy (p, "down-"); p += 5; } |
4936 | if (modifiers & drag_modifier) { strcpy (p, "drag-"); p += 5; } | |
0a7f1fc0 JB |
4937 | /* The click modifier is denoted by the absence of other modifiers. */ |
4938 | ||
4939 | *p = '\0'; | |
4940 | ||
4941 | mod_len = p - new_mods; | |
4942 | } | |
284f4730 | 4943 | |
0a7f1fc0 | 4944 | { |
9b8eb840 | 4945 | Lisp_Object new_name; |
df0f2ba1 | 4946 | |
301738ed RS |
4947 | new_name = make_uninit_multibyte_string (mod_len + base_len, |
4948 | mod_len + base_len_byte); | |
0a7f1fc0 | 4949 | bcopy (new_mods, XSTRING (new_name)->data, mod_len); |
301738ed | 4950 | bcopy (base, XSTRING (new_name)->data + mod_len, base_len_byte); |
284f4730 JB |
4951 | |
4952 | return Fintern (new_name, Qnil); | |
4953 | } | |
4954 | } | |
4955 | ||
4956 | ||
0a7f1fc0 JB |
4957 | static char *modifier_names[] = |
4958 | { | |
fbcd35bd | 4959 | "up", "down", "drag", "click", "double", "triple", 0, 0, |
f335fabe | 4960 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
86e5706b | 4961 | 0, 0, "alt", "super", "hyper", "shift", "control", "meta" |
0a7f1fc0 | 4962 | }; |
80645119 | 4963 | #define NUM_MOD_NAMES (sizeof (modifier_names) / sizeof (modifier_names[0])) |
0a7f1fc0 JB |
4964 | |
4965 | static Lisp_Object modifier_symbols; | |
4966 | ||
4967 | /* Return the list of modifier symbols corresponding to the mask MODIFIERS. */ | |
4968 | static Lisp_Object | |
4969 | lispy_modifier_list (modifiers) | |
4970 | int modifiers; | |
4971 | { | |
4972 | Lisp_Object modifier_list; | |
4973 | int i; | |
4974 | ||
4975 | modifier_list = Qnil; | |
80645119 | 4976 | for (i = 0; (1<<i) <= modifiers && i < NUM_MOD_NAMES; i++) |
0a7f1fc0 | 4977 | if (modifiers & (1<<i)) |
80645119 JB |
4978 | modifier_list = Fcons (XVECTOR (modifier_symbols)->contents[i], |
4979 | modifier_list); | |
0a7f1fc0 JB |
4980 | |
4981 | return modifier_list; | |
4982 | } | |
4983 | ||
4984 | ||
4985 | /* Parse the modifiers on SYMBOL, and return a list like (UNMODIFIED MASK), | |
4986 | where UNMODIFIED is the unmodified form of SYMBOL, | |
4987 | MASK is the set of modifiers present in SYMBOL's name. | |
4988 | This is similar to parse_modifiers_uncached, but uses the cache in | |
4989 | SYMBOL's Qevent_symbol_element_mask property, and maintains the | |
4990 | Qevent_symbol_elements property. */ | |
3d31316f | 4991 | |
1161d367 | 4992 | Lisp_Object |
0a7f1fc0 JB |
4993 | parse_modifiers (symbol) |
4994 | Lisp_Object symbol; | |
4995 | { | |
9b8eb840 | 4996 | Lisp_Object elements; |
0a7f1fc0 | 4997 | |
9b8eb840 | 4998 | elements = Fget (symbol, Qevent_symbol_element_mask); |
0a7f1fc0 JB |
4999 | if (CONSP (elements)) |
5000 | return elements; | |
5001 | else | |
5002 | { | |
5003 | int end; | |
ec0faad2 | 5004 | int modifiers = parse_modifiers_uncached (symbol, &end); |
9b8eb840 | 5005 | Lisp_Object unmodified; |
0a7f1fc0 JB |
5006 | Lisp_Object mask; |
5007 | ||
9b8eb840 | 5008 | unmodified = Fintern (make_string (XSYMBOL (symbol)->name->data + end, |
fc932ac6 | 5009 | STRING_BYTES (XSYMBOL (symbol)->name) - end), |
9b8eb840 KH |
5010 | Qnil); |
5011 | ||
ec0faad2 | 5012 | if (modifiers & ~(((EMACS_INT)1 << VALBITS) - 1)) |
734fef94 | 5013 | abort (); |
bb9e9bed | 5014 | XSETFASTINT (mask, modifiers); |
0a7f1fc0 JB |
5015 | elements = Fcons (unmodified, Fcons (mask, Qnil)); |
5016 | ||
5017 | /* Cache the parsing results on SYMBOL. */ | |
5018 | Fput (symbol, Qevent_symbol_element_mask, | |
5019 | elements); | |
5020 | Fput (symbol, Qevent_symbol_elements, | |
5021 | Fcons (unmodified, lispy_modifier_list (modifiers))); | |
5022 | ||
5023 | /* Since we know that SYMBOL is modifiers applied to unmodified, | |
5024 | it would be nice to put that in unmodified's cache. | |
5025 | But we can't, since we're not sure that parse_modifiers is | |
5026 | canonical. */ | |
5027 | ||
5028 | return elements; | |
5029 | } | |
5030 | } | |
5031 | ||
5032 | /* Apply the modifiers MODIFIERS to the symbol BASE. | |
5033 | BASE must be unmodified. | |
5034 | ||
5035 | This is like apply_modifiers_uncached, but uses BASE's | |
5036 | Qmodifier_cache property, if present. It also builds | |
cd21b839 JB |
5037 | Qevent_symbol_elements properties, since it has that info anyway. |
5038 | ||
5039 | apply_modifiers copies the value of BASE's Qevent_kind property to | |
5040 | the modified symbol. */ | |
0a7f1fc0 JB |
5041 | static Lisp_Object |
5042 | apply_modifiers (modifiers, base) | |
5043 | int modifiers; | |
5044 | Lisp_Object base; | |
5045 | { | |
7b4aedb9 | 5046 | Lisp_Object cache, index, entry, new_symbol; |
0a7f1fc0 | 5047 | |
80645119 | 5048 | /* Mask out upper bits. We don't know where this value's been. */ |
ec0faad2 | 5049 | modifiers &= ((EMACS_INT)1 << VALBITS) - 1; |
80645119 | 5050 | |
0a7f1fc0 | 5051 | /* The click modifier never figures into cache indices. */ |
0a7f1fc0 | 5052 | cache = Fget (base, Qmodifier_cache); |
bb9e9bed | 5053 | XSETFASTINT (index, (modifiers & ~click_modifier)); |
697e4895 | 5054 | entry = assq_no_quit (index, cache); |
0a7f1fc0 JB |
5055 | |
5056 | if (CONSP (entry)) | |
7b4aedb9 JB |
5057 | new_symbol = XCONS (entry)->cdr; |
5058 | else | |
5059 | { | |
df0f2ba1 | 5060 | /* We have to create the symbol ourselves. */ |
7b4aedb9 JB |
5061 | new_symbol = apply_modifiers_uncached (modifiers, |
5062 | XSYMBOL (base)->name->data, | |
301738ed | 5063 | XSYMBOL (base)->name->size, |
fc932ac6 | 5064 | STRING_BYTES (XSYMBOL (base)->name)); |
7b4aedb9 JB |
5065 | |
5066 | /* Add the new symbol to the base's cache. */ | |
5067 | entry = Fcons (index, new_symbol); | |
5068 | Fput (base, Qmodifier_cache, Fcons (entry, cache)); | |
5069 | ||
5070 | /* We have the parsing info now for free, so add it to the caches. */ | |
bb9e9bed | 5071 | XSETFASTINT (index, modifiers); |
7b4aedb9 JB |
5072 | Fput (new_symbol, Qevent_symbol_element_mask, |
5073 | Fcons (base, Fcons (index, Qnil))); | |
5074 | Fput (new_symbol, Qevent_symbol_elements, | |
5075 | Fcons (base, lispy_modifier_list (modifiers))); | |
5076 | } | |
0a7f1fc0 | 5077 | |
df0f2ba1 | 5078 | /* Make sure this symbol is of the same kind as BASE. |
7b4aedb9 JB |
5079 | |
5080 | You'd think we could just set this once and for all when we | |
5081 | intern the symbol above, but reorder_modifiers may call us when | |
5082 | BASE's property isn't set right; we can't assume that just | |
80645119 JB |
5083 | because it has a Qmodifier_cache property it must have its |
5084 | Qevent_kind set right as well. */ | |
7b4aedb9 JB |
5085 | if (NILP (Fget (new_symbol, Qevent_kind))) |
5086 | { | |
9b8eb840 | 5087 | Lisp_Object kind; |
7b4aedb9 | 5088 | |
9b8eb840 | 5089 | kind = Fget (base, Qevent_kind); |
7b4aedb9 JB |
5090 | if (! NILP (kind)) |
5091 | Fput (new_symbol, Qevent_kind, kind); | |
5092 | } | |
5093 | ||
5094 | return new_symbol; | |
0a7f1fc0 JB |
5095 | } |
5096 | ||
5097 | ||
5098 | /* Given a symbol whose name begins with modifiers ("C-", "M-", etc), | |
5099 | return a symbol with the modifiers placed in the canonical order. | |
5100 | Canonical order is alphabetical, except for down and drag, which | |
5101 | always come last. The 'click' modifier is never written out. | |
5102 | ||
5103 | Fdefine_key calls this to make sure that (for example) C-M-foo | |
5104 | and M-C-foo end up being equivalent in the keymap. */ | |
5105 | ||
5106 | Lisp_Object | |
5107 | reorder_modifiers (symbol) | |
5108 | Lisp_Object symbol; | |
5109 | { | |
5110 | /* It's hopefully okay to write the code this way, since everything | |
5111 | will soon be in caches, and no consing will be done at all. */ | |
9b8eb840 | 5112 | Lisp_Object parsed; |
0a7f1fc0 | 5113 | |
9b8eb840 | 5114 | parsed = parse_modifiers (symbol); |
54593ed9 | 5115 | return apply_modifiers ((int) XINT (XCONS (XCONS (parsed)->cdr)->car), |
0a7f1fc0 JB |
5116 | XCONS (parsed)->car); |
5117 | } | |
5118 | ||
5119 | ||
284f4730 JB |
5120 | /* For handling events, we often want to produce a symbol whose name |
5121 | is a series of modifier key prefixes ("M-", "C-", etcetera) attached | |
5122 | to some base, like the name of a function key or mouse button. | |
5123 | modify_event_symbol produces symbols of this sort. | |
5124 | ||
5125 | NAME_TABLE should point to an array of strings, such that NAME_TABLE[i] | |
5126 | is the name of the i'th symbol. TABLE_SIZE is the number of elements | |
5127 | in the table. | |
5128 | ||
80e4aa30 RS |
5129 | Alternatively, NAME_ALIST is an alist mapping codes into symbol names. |
5130 | NAME_ALIST is used if it is non-nil; otherwise NAME_TABLE is used. | |
5131 | ||
284f4730 JB |
5132 | SYMBOL_TABLE should be a pointer to a Lisp_Object whose value will |
5133 | persist between calls to modify_event_symbol that it can use to | |
5134 | store a cache of the symbols it's generated for this NAME_TABLE | |
80e4aa30 | 5135 | before. The object stored there may be a vector or an alist. |
284f4730 JB |
5136 | |
5137 | SYMBOL_NUM is the number of the base name we want from NAME_TABLE. | |
df0f2ba1 | 5138 | |
284f4730 JB |
5139 | MODIFIERS is a set of modifier bits (as given in struct input_events) |
5140 | whose prefixes should be applied to the symbol name. | |
5141 | ||
5142 | SYMBOL_KIND is the value to be placed in the event_kind property of | |
df0f2ba1 | 5143 | the returned symbol. |
88cb0656 JB |
5144 | |
5145 | The symbols we create are supposed to have an | |
eb8c3be9 | 5146 | `event-symbol-elements' property, which lists the modifiers present |
88cb0656 JB |
5147 | in the symbol's name. */ |
5148 | ||
284f4730 | 5149 | static Lisp_Object |
80e4aa30 RS |
5150 | modify_event_symbol (symbol_num, modifiers, symbol_kind, name_alist, |
5151 | name_table, symbol_table, table_size) | |
284f4730 JB |
5152 | int symbol_num; |
5153 | unsigned modifiers; | |
5154 | Lisp_Object symbol_kind; | |
80e4aa30 | 5155 | Lisp_Object name_alist; |
284f4730 JB |
5156 | char **name_table; |
5157 | Lisp_Object *symbol_table; | |
2c834fb3 | 5158 | unsigned int table_size; |
284f4730 | 5159 | { |
80e4aa30 RS |
5160 | Lisp_Object value; |
5161 | Lisp_Object symbol_int; | |
5162 | ||
2c834fb3 KH |
5163 | /* Get rid of the "vendor-specific" bit here. */ |
5164 | XSETINT (symbol_int, symbol_num & 0xffffff); | |
284f4730 JB |
5165 | |
5166 | /* Is this a request for a valid symbol? */ | |
88cb0656 | 5167 | if (symbol_num < 0 || symbol_num >= table_size) |
0c2611c5 | 5168 | return Qnil; |
284f4730 | 5169 | |
80e4aa30 RS |
5170 | if (CONSP (*symbol_table)) |
5171 | value = Fcdr (assq_no_quit (symbol_int, *symbol_table)); | |
5172 | ||
0a7f1fc0 | 5173 | /* If *symbol_table doesn't seem to be initialized properly, fix that. |
88cb0656 | 5174 | *symbol_table should be a lisp vector TABLE_SIZE elements long, |
4bb994d1 JB |
5175 | where the Nth element is the symbol for NAME_TABLE[N], or nil if |
5176 | we've never used that symbol before. */ | |
80e4aa30 | 5177 | else |
88cb0656 | 5178 | { |
80e4aa30 RS |
5179 | if (! VECTORP (*symbol_table) |
5180 | || XVECTOR (*symbol_table)->size != table_size) | |
5181 | { | |
5182 | Lisp_Object size; | |
0a7f1fc0 | 5183 | |
bb9e9bed | 5184 | XSETFASTINT (size, table_size); |
80e4aa30 RS |
5185 | *symbol_table = Fmake_vector (size, Qnil); |
5186 | } | |
284f4730 | 5187 | |
80e4aa30 RS |
5188 | value = XVECTOR (*symbol_table)->contents[symbol_num]; |
5189 | } | |
284f4730 | 5190 | |
0a7f1fc0 | 5191 | /* Have we already used this symbol before? */ |
80e4aa30 | 5192 | if (NILP (value)) |
284f4730 | 5193 | { |
0a7f1fc0 | 5194 | /* No; let's create it. */ |
80e4aa30 | 5195 | if (!NILP (name_alist)) |
b64b4075 | 5196 | value = Fcdr_safe (Fassq (symbol_int, name_alist)); |
2ff6714d | 5197 | else if (name_table != 0 && name_table[symbol_num]) |
80e4aa30 | 5198 | value = intern (name_table[symbol_num]); |
b64b4075 | 5199 | |
e98a93eb | 5200 | #ifdef HAVE_WINDOW_SYSTEM |
2c834fb3 KH |
5201 | if (NILP (value)) |
5202 | { | |
5203 | char *name = x_get_keysym_name (symbol_num); | |
5204 | if (name) | |
5205 | value = intern (name); | |
5206 | } | |
5207 | #endif | |
5208 | ||
b64b4075 | 5209 | if (NILP (value)) |
d1f50460 RS |
5210 | { |
5211 | char buf[20]; | |
5212 | sprintf (buf, "key-%d", symbol_num); | |
80e4aa30 | 5213 | value = intern (buf); |
d1f50460 | 5214 | } |
0a7f1fc0 | 5215 | |
80e4aa30 | 5216 | if (CONSP (*symbol_table)) |
4205cb08 | 5217 | *symbol_table = Fcons (Fcons (symbol_int, value), *symbol_table); |
80e4aa30 RS |
5218 | else |
5219 | XVECTOR (*symbol_table)->contents[symbol_num] = value; | |
5220 | ||
df0f2ba1 | 5221 | /* Fill in the cache entries for this symbol; this also |
0a7f1fc0 JB |
5222 | builds the Qevent_symbol_elements property, which the user |
5223 | cares about. */ | |
80e4aa30 RS |
5224 | apply_modifiers (modifiers & click_modifier, value); |
5225 | Fput (value, Qevent_kind, symbol_kind); | |
284f4730 | 5226 | } |
88cb0656 | 5227 | |
0a7f1fc0 | 5228 | /* Apply modifiers to that symbol. */ |
80e4aa30 | 5229 | return apply_modifiers (modifiers, value); |
284f4730 | 5230 | } |
6da3dd3a RS |
5231 | \f |
5232 | /* Convert a list that represents an event type, | |
5233 | such as (ctrl meta backspace), into the usual representation of that | |
5234 | event type as a number or a symbol. */ | |
5235 | ||
a1706c30 | 5236 | DEFUN ("event-convert-list", Fevent_convert_list, Sevent_convert_list, 1, 1, 0, |
e57d8fd8 EN |
5237 | "Convert the event description list EVENT-DESC to an event type.\n\ |
5238 | EVENT-DESC should contain one base event type (a character or symbol)\n\ | |
a1706c30 | 5239 | and zero or more modifier names (control, meta, hyper, super, shift, alt,\n\ |
377f24f5 | 5240 | drag, down, double or triple). The base must be last.\n\ |
a1706c30 KH |
5241 | The return value is an event type (a character or symbol) which\n\ |
5242 | has the same base event type and all the specified modifiers.") | |
e57d8fd8 EN |
5243 | (event_desc) |
5244 | Lisp_Object event_desc; | |
6da3dd3a RS |
5245 | { |
5246 | Lisp_Object base; | |
5247 | int modifiers = 0; | |
5248 | Lisp_Object rest; | |
5249 | ||
5250 | base = Qnil; | |
e57d8fd8 | 5251 | rest = event_desc; |
6da3dd3a RS |
5252 | while (CONSP (rest)) |
5253 | { | |
5254 | Lisp_Object elt; | |
5255 | int this = 0; | |
5256 | ||
5257 | elt = XCONS (rest)->car; | |
377f24f5 | 5258 | rest = XCONS (rest)->cdr; |
6da3dd3a | 5259 | |
3d31316f | 5260 | /* Given a symbol, see if it is a modifier name. */ |
377f24f5 | 5261 | if (SYMBOLP (elt) && CONSP (rest)) |
3d31316f | 5262 | this = parse_solitary_modifier (elt); |
6da3dd3a RS |
5263 | |
5264 | if (this != 0) | |
5265 | modifiers |= this; | |
5266 | else if (!NILP (base)) | |
5267 | error ("Two bases given in one event"); | |
5268 | else | |
5269 | base = elt; | |
5270 | ||
6da3dd3a RS |
5271 | } |
5272 | ||
3d31316f RS |
5273 | /* Let the symbol A refer to the character A. */ |
5274 | if (SYMBOLP (base) && XSYMBOL (base)->name->size == 1) | |
5275 | XSETINT (base, XSYMBOL (base)->name->data[0]); | |
5276 | ||
6da3dd3a RS |
5277 | if (INTEGERP (base)) |
5278 | { | |
3d31316f RS |
5279 | /* Turn (shift a) into A. */ |
5280 | if ((modifiers & shift_modifier) != 0 | |
5281 | && (XINT (base) >= 'a' && XINT (base) <= 'z')) | |
5282 | { | |
5283 | XSETINT (base, XINT (base) - ('a' - 'A')); | |
5284 | modifiers &= ~shift_modifier; | |
5285 | } | |
5286 | ||
5287 | /* Turn (control a) into C-a. */ | |
6da3dd3a | 5288 | if (modifiers & ctrl_modifier) |
3d31316f | 5289 | return make_number ((modifiers & ~ctrl_modifier) |
6da3dd3a RS |
5290 | | make_ctrl_char (XINT (base))); |
5291 | else | |
5292 | return make_number (modifiers | XINT (base)); | |
5293 | } | |
5294 | else if (SYMBOLP (base)) | |
5295 | return apply_modifiers (modifiers, base); | |
5296 | else | |
5297 | error ("Invalid base event"); | |
5298 | } | |
5299 | ||
3d31316f RS |
5300 | /* Try to recognize SYMBOL as a modifier name. |
5301 | Return the modifier flag bit, or 0 if not recognized. */ | |
5302 | ||
5303 | static int | |
5304 | parse_solitary_modifier (symbol) | |
5305 | Lisp_Object symbol; | |
5306 | { | |
5307 | struct Lisp_String *name = XSYMBOL (symbol)->name; | |
5308 | ||
5309 | switch (name->data[0]) | |
5310 | { | |
5311 | #define SINGLE_LETTER_MOD(BIT) \ | |
fc932ac6 | 5312 | if (STRING_BYTES (name) == 1) \ |
3d31316f RS |
5313 | return BIT; |
5314 | ||
5315 | #define MULTI_LETTER_MOD(BIT, NAME, LEN) \ | |
fc932ac6 | 5316 | if (LEN == STRING_BYTES (name) \ |
3d31316f RS |
5317 | && ! strncmp (name->data, NAME, LEN)) \ |
5318 | return BIT; | |
5319 | ||
5320 | case 'A': | |
5321 | SINGLE_LETTER_MOD (alt_modifier); | |
5322 | break; | |
5323 | ||
5324 | case 'a': | |
5325 | MULTI_LETTER_MOD (alt_modifier, "alt", 3); | |
5326 | break; | |
5327 | ||
5328 | case 'C': | |
5329 | SINGLE_LETTER_MOD (ctrl_modifier); | |
5330 | break; | |
5331 | ||
5332 | case 'c': | |
5333 | MULTI_LETTER_MOD (ctrl_modifier, "ctrl", 4); | |
5334 | MULTI_LETTER_MOD (ctrl_modifier, "control", 7); | |
5335 | break; | |
5336 | ||
5337 | case 'H': | |
5338 | SINGLE_LETTER_MOD (hyper_modifier); | |
5339 | break; | |
5340 | ||
5341 | case 'h': | |
5342 | MULTI_LETTER_MOD (hyper_modifier, "hyper", 5); | |
5343 | break; | |
5344 | ||
5345 | case 'M': | |
5346 | SINGLE_LETTER_MOD (meta_modifier); | |
5347 | break; | |
5348 | ||
5349 | case 'm': | |
5350 | MULTI_LETTER_MOD (meta_modifier, "meta", 4); | |
5351 | break; | |
5352 | ||
5353 | case 'S': | |
5354 | SINGLE_LETTER_MOD (shift_modifier); | |
5355 | break; | |
5356 | ||
5357 | case 's': | |
5358 | MULTI_LETTER_MOD (shift_modifier, "shift", 5); | |
5359 | MULTI_LETTER_MOD (super_modifier, "super", 5); | |
5360 | SINGLE_LETTER_MOD (super_modifier); | |
5361 | break; | |
5362 | ||
5363 | case 'd': | |
5364 | MULTI_LETTER_MOD (drag_modifier, "drag", 4); | |
5365 | MULTI_LETTER_MOD (down_modifier, "down", 4); | |
5366 | MULTI_LETTER_MOD (double_modifier, "double", 6); | |
5367 | break; | |
5368 | ||
5369 | case 't': | |
5370 | MULTI_LETTER_MOD (triple_modifier, "triple", 6); | |
5371 | break; | |
5372 | ||
5373 | #undef SINGLE_LETTER_MOD | |
5374 | #undef MULTI_LETTER_MOD | |
5375 | } | |
5376 | ||
5377 | return 0; | |
5378 | } | |
5379 | ||
6da3dd3a RS |
5380 | /* Return 1 if EVENT is a list whose elements are all integers or symbols. |
5381 | Such a list is not valid as an event, | |
5382 | but it can be a Lucid-style event type list. */ | |
5383 | ||
5384 | int | |
5385 | lucid_event_type_list_p (object) | |
5386 | Lisp_Object object; | |
5387 | { | |
5388 | Lisp_Object tail; | |
5389 | ||
5390 | if (! CONSP (object)) | |
5391 | return 0; | |
5392 | ||
5393 | for (tail = object; CONSP (tail); tail = XCONS (tail)->cdr) | |
5394 | { | |
5395 | Lisp_Object elt; | |
5396 | elt = XCONS (tail)->car; | |
5397 | if (! (INTEGERP (elt) || SYMBOLP (elt))) | |
5398 | return 0; | |
5399 | } | |
5400 | ||
5401 | return NILP (tail); | |
5402 | } | |
284f4730 | 5403 | \f |
284f4730 JB |
5404 | /* Store into *addr a value nonzero if terminal input chars are available. |
5405 | Serves the purpose of ioctl (0, FIONREAD, addr) | |
5406 | but works even if FIONREAD does not exist. | |
d9d4c147 KH |
5407 | (In fact, this may actually read some input.) |
5408 | ||
5409 | If DO_TIMERS_NOW is nonzero, actually run timer events that are ripe. */ | |
284f4730 JB |
5410 | |
5411 | static void | |
d9d4c147 | 5412 | get_input_pending (addr, do_timers_now) |
284f4730 | 5413 | int *addr; |
d9d4c147 | 5414 | int do_timers_now; |
284f4730 JB |
5415 | { |
5416 | /* First of all, have we already counted some input? */ | |
d9d4c147 | 5417 | *addr = !NILP (Vquit_flag) || readable_events (do_timers_now); |
284f4730 JB |
5418 | |
5419 | /* If input is being read as it arrives, and we have none, there is none. */ | |
5420 | if (*addr > 0 || (interrupt_input && ! interrupts_deferred)) | |
5421 | return; | |
5422 | ||
5423 | /* Try to read some input and see how much we get. */ | |
5424 | gobble_input (0); | |
d9d4c147 | 5425 | *addr = !NILP (Vquit_flag) || readable_events (do_timers_now); |
284f4730 JB |
5426 | } |
5427 | ||
81931ba1 | 5428 | /* Interface to read_avail_input, blocking SIGIO or SIGALRM if necessary. */ |
284f4730 | 5429 | |
07a59269 | 5430 | void |
284f4730 JB |
5431 | gobble_input (expected) |
5432 | int expected; | |
5433 | { | |
5434 | #ifndef VMS | |
5435 | #ifdef SIGIO | |
5436 | if (interrupt_input) | |
5437 | { | |
32676c08 | 5438 | SIGMASKTYPE mask; |
4f8aaa74 | 5439 | mask = sigblock (sigmask (SIGIO)); |
284f4730 | 5440 | read_avail_input (expected); |
e065a56e | 5441 | sigsetmask (mask); |
284f4730 JB |
5442 | } |
5443 | else | |
81931ba1 RS |
5444 | #ifdef POLL_FOR_INPUT |
5445 | if (read_socket_hook && !interrupt_input && poll_suppress_count == 0) | |
5446 | { | |
5447 | SIGMASKTYPE mask; | |
4f8aaa74 | 5448 | mask = sigblock (sigmask (SIGALRM)); |
81931ba1 RS |
5449 | read_avail_input (expected); |
5450 | sigsetmask (mask); | |
5451 | } | |
5452 | else | |
87485d6f | 5453 | #endif |
284f4730 JB |
5454 | #endif |
5455 | read_avail_input (expected); | |
5456 | #endif | |
5457 | } | |
a8015ab5 | 5458 | |
241ceaf7 RS |
5459 | /* Put a buffer_switch_event in the buffer |
5460 | so that read_key_sequence will notice the new current buffer. */ | |
5461 | ||
07a59269 | 5462 | void |
a8015ab5 KH |
5463 | record_asynch_buffer_change () |
5464 | { | |
5465 | struct input_event event; | |
a30f0615 RS |
5466 | Lisp_Object tem; |
5467 | ||
a8015ab5 KH |
5468 | event.kind = buffer_switch_event; |
5469 | event.frame_or_window = Qnil; | |
241ceaf7 | 5470 | |
f65e6f7d | 5471 | #ifdef subprocesses |
a30f0615 RS |
5472 | /* We don't need a buffer-switch event unless Emacs is waiting for input. |
5473 | The purpose of the event is to make read_key_sequence look up the | |
5474 | keymaps again. If we aren't in read_key_sequence, we don't need one, | |
5475 | and the event could cause trouble by messing up (input-pending-p). */ | |
5476 | tem = Fwaiting_for_user_input_p (); | |
5477 | if (NILP (tem)) | |
5478 | return; | |
f65e6f7d RS |
5479 | #else |
5480 | /* We never need these events if we have no asynchronous subprocesses. */ | |
5481 | return; | |
5482 | #endif | |
a30f0615 | 5483 | |
241ceaf7 RS |
5484 | /* Make sure no interrupt happens while storing the event. */ |
5485 | #ifdef SIGIO | |
5486 | if (interrupt_input) | |
5487 | { | |
5488 | SIGMASKTYPE mask; | |
4f8aaa74 | 5489 | mask = sigblock (sigmask (SIGIO)); |
241ceaf7 RS |
5490 | kbd_buffer_store_event (&event); |
5491 | sigsetmask (mask); | |
5492 | } | |
5493 | else | |
5494 | #endif | |
5495 | { | |
5496 | stop_polling (); | |
5497 | kbd_buffer_store_event (&event); | |
5498 | start_polling (); | |
5499 | } | |
a8015ab5 | 5500 | } |
284f4730 JB |
5501 | \f |
5502 | #ifndef VMS | |
5503 | ||
5504 | /* Read any terminal input already buffered up by the system | |
5505 | into the kbd_buffer, but do not wait. | |
5506 | ||
5507 | EXPECTED should be nonzero if the caller knows there is some input. | |
5508 | ||
5509 | Except on VMS, all input is read by this function. | |
5510 | If interrupt_input is nonzero, this function MUST be called | |
5511 | only when SIGIO is blocked. | |
5512 | ||
5513 | Returns the number of keyboard chars read, or -1 meaning | |
5514 | this is a bad time to try to read input. */ | |
5515 | ||
5516 | static int | |
5517 | read_avail_input (expected) | |
5518 | int expected; | |
5519 | { | |
5520 | struct input_event buf[KBD_BUFFER_SIZE]; | |
5521 | register int i; | |
5522 | int nread; | |
5523 | ||
5524 | if (read_socket_hook) | |
5525 | /* No need for FIONREAD or fcntl; just say don't wait. */ | |
33e19c6e | 5526 | nread = (*read_socket_hook) (input_fd, buf, KBD_BUFFER_SIZE, expected); |
284f4730 JB |
5527 | else |
5528 | { | |
17270835 RS |
5529 | /* Using KBD_BUFFER_SIZE - 1 here avoids reading more than |
5530 | the kbd_buffer can really hold. That may prevent loss | |
5531 | of characters on some systems when input is stuffed at us. */ | |
5532 | unsigned char cbuf[KBD_BUFFER_SIZE - 1]; | |
58788063 | 5533 | int n_to_read; |
284f4730 | 5534 | |
58788063 | 5535 | /* Determine how many characters we should *try* to read. */ |
bc536d84 RS |
5536 | #ifdef WINDOWSNT |
5537 | return 0; | |
5538 | #else /* not WINDOWSNT */ | |
80e4aa30 | 5539 | #ifdef MSDOS |
58788063 RS |
5540 | n_to_read = dos_keysns (); |
5541 | if (n_to_read == 0) | |
5542 | return 0; | |
c3a2738c | 5543 | #else /* not MSDOS */ |
284f4730 JB |
5544 | #ifdef FIONREAD |
5545 | /* Find out how much input is available. */ | |
437f6112 | 5546 | if (ioctl (input_fd, FIONREAD, &n_to_read) < 0) |
284f4730 JB |
5547 | /* Formerly simply reported no input, but that sometimes led to |
5548 | a failure of Emacs to terminate. | |
5549 | SIGHUP seems appropriate if we can't reach the terminal. */ | |
e4535288 RS |
5550 | /* ??? Is it really right to send the signal just to this process |
5551 | rather than to the whole process group? | |
5552 | Perhaps on systems with FIONREAD Emacs is alone in its group. */ | |
284f4730 | 5553 | kill (getpid (), SIGHUP); |
58788063 | 5554 | if (n_to_read == 0) |
284f4730 | 5555 | return 0; |
58788063 RS |
5556 | if (n_to_read > sizeof cbuf) |
5557 | n_to_read = sizeof cbuf; | |
284f4730 | 5558 | #else /* no FIONREAD */ |
0c04a67e | 5559 | #if defined (USG) || defined (DGUX) |
284f4730 | 5560 | /* Read some input if available, but don't wait. */ |
58788063 | 5561 | n_to_read = sizeof cbuf; |
437f6112 | 5562 | fcntl (input_fd, F_SETFL, O_NDELAY); |
284f4730 JB |
5563 | #else |
5564 | you lose; | |
5565 | #endif | |
5566 | #endif | |
80e4aa30 | 5567 | #endif /* not MSDOS */ |
bc536d84 | 5568 | #endif /* not WINDOWSNT */ |
284f4730 | 5569 | |
58788063 RS |
5570 | /* Now read; for one reason or another, this will not block. |
5571 | NREAD is set to the number of chars read. */ | |
9134775b | 5572 | do |
284f4730 | 5573 | { |
80e4aa30 | 5574 | #ifdef MSDOS |
0c04a67e | 5575 | cbuf[0] = dos_keyread (); |
80e4aa30 RS |
5576 | nread = 1; |
5577 | #else | |
437f6112 | 5578 | nread = read (input_fd, cbuf, n_to_read); |
80e4aa30 | 5579 | #endif |
49854566 RS |
5580 | /* POSIX infers that processes which are not in the session leader's |
5581 | process group won't get SIGHUP's at logout time. BSDI adheres to | |
e8886a1d | 5582 | this part standard and returns -1 from read (0) with errno==EIO |
49854566 RS |
5583 | when the control tty is taken away. |
5584 | Jeffrey Honig <jch@bsdi.com> says this is generally safe. */ | |
5585 | if (nread == -1 && errno == EIO) | |
5586 | kill (0, SIGHUP); | |
762f2b92 | 5587 | #if defined (AIX) && (! defined (aix386) && defined (_BSD)) |
284f4730 JB |
5588 | /* The kernel sometimes fails to deliver SIGHUP for ptys. |
5589 | This looks incorrect, but it isn't, because _BSD causes | |
5590 | O_NDELAY to be defined in fcntl.h as O_NONBLOCK, | |
5591 | and that causes a value other than 0 when there is no input. */ | |
854f3a54 | 5592 | if (nread == 0) |
80e4aa30 | 5593 | kill (0, SIGHUP); |
284f4730 | 5594 | #endif |
9134775b | 5595 | } |
791587ee KH |
5596 | while ( |
5597 | /* We used to retry the read if it was interrupted. | |
5598 | But this does the wrong thing when O_NDELAY causes | |
5599 | an EAGAIN error. Does anybody know of a situation | |
5600 | where a retry is actually needed? */ | |
5601 | #if 0 | |
5602 | nread < 0 && (errno == EAGAIN | |
6aec06f5 | 5603 | #ifdef EFAULT |
9134775b | 5604 | || errno == EFAULT |
80e4aa30 | 5605 | #endif |
284f4730 | 5606 | #ifdef EBADSLT |
9134775b | 5607 | || errno == EBADSLT |
284f4730 | 5608 | #endif |
791587ee KH |
5609 | ) |
5610 | #else | |
5611 | 0 | |
5612 | #endif | |
5613 | ); | |
284f4730 JB |
5614 | |
5615 | #ifndef FIONREAD | |
02c2c53f | 5616 | #if defined (USG) || defined (DGUX) |
437f6112 | 5617 | fcntl (input_fd, F_SETFL, 0); |
02c2c53f | 5618 | #endif /* USG or DGUX */ |
284f4730 JB |
5619 | #endif /* no FIONREAD */ |
5620 | for (i = 0; i < nread; i++) | |
5621 | { | |
5622 | buf[i].kind = ascii_keystroke; | |
86e5706b | 5623 | buf[i].modifiers = 0; |
b04904fb | 5624 | if (meta_key == 1 && (cbuf[i] & 0x80)) |
86e5706b | 5625 | buf[i].modifiers = meta_modifier; |
b04904fb RS |
5626 | if (meta_key != 2) |
5627 | cbuf[i] &= ~0x80; | |
f3e59d5e KH |
5628 | |
5629 | buf[i].code = cbuf[i]; | |
788f89eb | 5630 | buf[i].frame_or_window = selected_frame; |
284f4730 JB |
5631 | } |
5632 | } | |
5633 | ||
5634 | /* Scan the chars for C-g and store them in kbd_buffer. */ | |
5635 | for (i = 0; i < nread; i++) | |
5636 | { | |
5637 | kbd_buffer_store_event (&buf[i]); | |
5638 | /* Don't look at input that follows a C-g too closely. | |
5639 | This reduces lossage due to autorepeat on C-g. */ | |
5640 | if (buf[i].kind == ascii_keystroke | |
9343ab07 | 5641 | && buf[i].code == quit_char) |
284f4730 JB |
5642 | break; |
5643 | } | |
5644 | ||
5645 | return nread; | |
5646 | } | |
5647 | #endif /* not VMS */ | |
5648 | \f | |
5649 | #ifdef SIGIO /* for entire page */ | |
5650 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
5651 | ||
2ce30ea2 | 5652 | SIGTYPE |
284f4730 JB |
5653 | input_available_signal (signo) |
5654 | int signo; | |
5655 | { | |
5656 | /* Must preserve main program's value of errno. */ | |
5657 | int old_errno = errno; | |
5658 | #ifdef BSD4_1 | |
5659 | extern int select_alarmed; | |
5660 | #endif | |
5661 | ||
5970a8cb | 5662 | #if defined (USG) && !defined (POSIX_SIGNALS) |
284f4730 JB |
5663 | /* USG systems forget handlers when they are used; |
5664 | must reestablish each time */ | |
5665 | signal (signo, input_available_signal); | |
5666 | #endif /* USG */ | |
5667 | ||
5668 | #ifdef BSD4_1 | |
5669 | sigisheld (SIGIO); | |
5670 | #endif | |
5671 | ||
ffd56f97 JB |
5672 | if (input_available_clear_time) |
5673 | EMACS_SET_SECS_USECS (*input_available_clear_time, 0, 0); | |
284f4730 JB |
5674 | |
5675 | while (1) | |
5676 | { | |
5677 | int nread; | |
5678 | nread = read_avail_input (1); | |
5679 | /* -1 means it's not ok to read the input now. | |
5680 | UNBLOCK_INPUT will read it later; now, avoid infinite loop. | |
5681 | 0 means there was no keyboard input available. */ | |
5682 | if (nread <= 0) | |
5683 | break; | |
5684 | ||
5685 | #ifdef BSD4_1 | |
5686 | select_alarmed = 1; /* Force the select emulator back to life */ | |
5687 | #endif | |
5688 | } | |
5689 | ||
5690 | #ifdef BSD4_1 | |
5691 | sigfree (); | |
5692 | #endif | |
5693 | errno = old_errno; | |
5694 | } | |
5695 | #endif /* SIGIO */ | |
ad163903 JB |
5696 | |
5697 | /* Send ourselves a SIGIO. | |
5698 | ||
5699 | This function exists so that the UNBLOCK_INPUT macro in | |
5700 | blockinput.h can have some way to take care of input we put off | |
5701 | dealing with, without assuming that every file which uses | |
5702 | UNBLOCK_INPUT also has #included the files necessary to get SIGIO. */ | |
5703 | void | |
5704 | reinvoke_input_signal () | |
5705 | { | |
df0f2ba1 | 5706 | #ifdef SIGIO |
87dd9b9b | 5707 | kill (getpid (), SIGIO); |
ad163903 JB |
5708 | #endif |
5709 | } | |
5710 | ||
5711 | ||
284f4730 JB |
5712 | \f |
5713 | /* Return the prompt-string of a sparse keymap. | |
5714 | This is the first element which is a string. | |
5715 | Return nil if there is none. */ | |
5716 | ||
5717 | Lisp_Object | |
5718 | map_prompt (map) | |
5719 | Lisp_Object map; | |
5720 | { | |
5721 | while (CONSP (map)) | |
5722 | { | |
5723 | register Lisp_Object tem; | |
5724 | tem = Fcar (map); | |
8c18cbfb | 5725 | if (STRINGP (tem)) |
284f4730 JB |
5726 | return tem; |
5727 | map = Fcdr (map); | |
5728 | } | |
5729 | return Qnil; | |
5730 | } | |
5731 | ||
b7c49376 RS |
5732 | static void menu_bar_item (); |
5733 | static void menu_bar_one_keymap (); | |
5734 | ||
5735 | /* These variables hold the vector under construction within | |
5736 | menu_bar_items and its subroutines, and the current index | |
5737 | for storing into that vector. */ | |
5738 | static Lisp_Object menu_bar_items_vector; | |
9343ab07 | 5739 | static int menu_bar_items_index; |
5ec75a55 | 5740 | |
b7c49376 RS |
5741 | /* Return a vector of menu items for a menu bar, appropriate |
5742 | to the current buffer. Each item has three elements in the vector: | |
f5e09c8b | 5743 | KEY STRING MAPLIST. |
b7c49376 RS |
5744 | |
5745 | OLD is an old vector we can optionally reuse, or nil. */ | |
5ec75a55 RS |
5746 | |
5747 | Lisp_Object | |
b7c49376 RS |
5748 | menu_bar_items (old) |
5749 | Lisp_Object old; | |
5ec75a55 RS |
5750 | { |
5751 | /* The number of keymaps we're scanning right now, and the number of | |
5752 | keymaps we have allocated space for. */ | |
5753 | int nmaps; | |
5754 | ||
5755 | /* maps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] | |
5756 | in the current keymaps, or nil where it is not a prefix. */ | |
5757 | Lisp_Object *maps; | |
5758 | ||
9f9c0e27 | 5759 | Lisp_Object def, tem, tail; |
5ec75a55 RS |
5760 | |
5761 | Lisp_Object result; | |
5762 | ||
5763 | int mapno; | |
47d319aa | 5764 | Lisp_Object oquit; |
5ec75a55 | 5765 | |
b7c49376 RS |
5766 | int i; |
5767 | ||
5768 | struct gcpro gcpro1; | |
5769 | ||
db60d856 JB |
5770 | /* In order to build the menus, we need to call the keymap |
5771 | accessors. They all call QUIT. But this function is called | |
5772 | during redisplay, during which a quit is fatal. So inhibit | |
47d319aa RS |
5773 | quitting while building the menus. |
5774 | We do this instead of specbind because (1) errors will clear it anyway | |
5775 | and (2) this avoids risk of specpdl overflow. */ | |
5776 | oquit = Vinhibit_quit; | |
df0f2ba1 | 5777 | Vinhibit_quit = Qt; |
db60d856 | 5778 | |
b7c49376 RS |
5779 | if (!NILP (old)) |
5780 | menu_bar_items_vector = old; | |
5781 | else | |
5782 | menu_bar_items_vector = Fmake_vector (make_number (24), Qnil); | |
5783 | menu_bar_items_index = 0; | |
5784 | ||
5785 | GCPRO1 (menu_bar_items_vector); | |
5786 | ||
5ec75a55 RS |
5787 | /* Build our list of keymaps. |
5788 | If we recognize a function key and replace its escape sequence in | |
5789 | keybuf with its symbol, or if the sequence starts with a mouse | |
5790 | click and we need to switch buffers, we jump back here to rebuild | |
5791 | the initial keymaps from the current buffer. */ | |
df0f2ba1 | 5792 | { |
5ec75a55 RS |
5793 | Lisp_Object *tmaps; |
5794 | ||
217258d5 | 5795 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ |
d0a49716 | 5796 | if (!NILP (Voverriding_local_map_menu_flag)) |
9dd3131c | 5797 | { |
217258d5 KH |
5798 | /* Yes, use them (if non-nil) as well as the global map. */ |
5799 | maps = (Lisp_Object *) alloca (3 * sizeof (maps[0])); | |
5800 | nmaps = 0; | |
5801 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
5802 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
5803 | if (!NILP (Voverriding_local_map)) | |
5804 | maps[nmaps++] = Voverriding_local_map; | |
9dd3131c RS |
5805 | } |
5806 | else | |
5807 | { | |
d0a49716 | 5808 | /* No, so use major and minor mode keymaps. */ |
217258d5 KH |
5809 | nmaps = current_minor_maps (NULL, &tmaps); |
5810 | maps = (Lisp_Object *) alloca ((nmaps + 2) * sizeof (maps[0])); | |
5811 | bcopy (tmaps, maps, nmaps * sizeof (maps[0])); | |
5ec75a55 | 5812 | #ifdef USE_TEXT_PROPERTIES |
217258d5 | 5813 | maps[nmaps++] = get_local_map (PT, current_buffer); |
5ec75a55 | 5814 | #else |
217258d5 | 5815 | maps[nmaps++] = current_buffer->keymap; |
5ec75a55 | 5816 | #endif |
9dd3131c | 5817 | } |
217258d5 | 5818 | maps[nmaps++] = current_global_map; |
5ec75a55 RS |
5819 | } |
5820 | ||
5821 | /* Look up in each map the dummy prefix key `menu-bar'. */ | |
5822 | ||
5823 | result = Qnil; | |
5824 | ||
e58aa385 | 5825 | for (mapno = nmaps - 1; mapno >= 0; mapno--) |
5ec75a55 RS |
5826 | { |
5827 | if (! NILP (maps[mapno])) | |
c6a67acd | 5828 | def = get_keyelt (access_keymap (maps[mapno], Qmenu_bar, 1, 0), 0); |
5ec75a55 RS |
5829 | else |
5830 | def = Qnil; | |
5831 | ||
5832 | tem = Fkeymapp (def); | |
5833 | if (!NILP (tem)) | |
b7c49376 | 5834 | menu_bar_one_keymap (def); |
5ec75a55 RS |
5835 | } |
5836 | ||
b7c49376 RS |
5837 | /* Move to the end those items that should be at the end. */ |
5838 | ||
9f9c0e27 RS |
5839 | for (tail = Vmenu_bar_final_items; CONSP (tail); tail = XCONS (tail)->cdr) |
5840 | { | |
b7c49376 RS |
5841 | int i; |
5842 | int end = menu_bar_items_index; | |
5843 | ||
35b3402f | 5844 | for (i = 0; i < end; i += 4) |
b7c49376 RS |
5845 | if (EQ (XCONS (tail)->car, XVECTOR (menu_bar_items_vector)->contents[i])) |
5846 | { | |
35b3402f | 5847 | Lisp_Object tem0, tem1, tem2, tem3; |
0301268e RS |
5848 | /* Move the item at index I to the end, |
5849 | shifting all the others forward. */ | |
5850 | tem0 = XVECTOR (menu_bar_items_vector)->contents[i + 0]; | |
5851 | tem1 = XVECTOR (menu_bar_items_vector)->contents[i + 1]; | |
5852 | tem2 = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
35b3402f RS |
5853 | tem3 = XVECTOR (menu_bar_items_vector)->contents[i + 3]; |
5854 | if (end > i + 4) | |
5855 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 4], | |
0301268e | 5856 | &XVECTOR (menu_bar_items_vector)->contents[i], |
35b3402f RS |
5857 | (end - i - 4) * sizeof (Lisp_Object)); |
5858 | XVECTOR (menu_bar_items_vector)->contents[end - 4] = tem0; | |
5859 | XVECTOR (menu_bar_items_vector)->contents[end - 3] = tem1; | |
5860 | XVECTOR (menu_bar_items_vector)->contents[end - 2] = tem2; | |
5861 | XVECTOR (menu_bar_items_vector)->contents[end - 1] = tem3; | |
0301268e | 5862 | break; |
b7c49376 RS |
5863 | } |
5864 | } | |
9f9c0e27 | 5865 | |
0c9071cd | 5866 | /* Add nil, nil, nil, nil at the end. */ |
b7c49376 | 5867 | i = menu_bar_items_index; |
35b3402f | 5868 | if (i + 4 > XVECTOR (menu_bar_items_vector)->size) |
b7c49376 RS |
5869 | { |
5870 | Lisp_Object tem; | |
5871 | int newsize = 2 * i; | |
5872 | tem = Fmake_vector (make_number (2 * i), Qnil); | |
5873 | bcopy (XVECTOR (menu_bar_items_vector)->contents, | |
5874 | XVECTOR (tem)->contents, i * sizeof (Lisp_Object)); | |
5875 | menu_bar_items_vector = tem; | |
9f9c0e27 | 5876 | } |
b7c49376 RS |
5877 | /* Add this item. */ |
5878 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
5879 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
5880 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; | |
35b3402f | 5881 | XVECTOR (menu_bar_items_vector)->contents[i++] = Qnil; |
b7c49376 | 5882 | menu_bar_items_index = i; |
a73c5e29 | 5883 | |
47d319aa | 5884 | Vinhibit_quit = oquit; |
b7c49376 RS |
5885 | UNGCPRO; |
5886 | return menu_bar_items_vector; | |
5ec75a55 RS |
5887 | } |
5888 | \f | |
5889 | /* Scan one map KEYMAP, accumulating any menu items it defines | |
f5e09c8b | 5890 | in menu_bar_items_vector. */ |
5ec75a55 | 5891 | |
759860a6 RS |
5892 | static Lisp_Object menu_bar_one_keymap_changed_items; |
5893 | ||
b7c49376 RS |
5894 | static void |
5895 | menu_bar_one_keymap (keymap) | |
5896 | Lisp_Object keymap; | |
5ec75a55 | 5897 | { |
e8886a1d | 5898 | Lisp_Object tail, item, table; |
5ec75a55 | 5899 | |
759860a6 RS |
5900 | menu_bar_one_keymap_changed_items = Qnil; |
5901 | ||
5ec75a55 | 5902 | /* Loop over all keymap entries that have menu strings. */ |
8c18cbfb | 5903 | for (tail = keymap; CONSP (tail); tail = XCONS (tail)->cdr) |
5ec75a55 RS |
5904 | { |
5905 | item = XCONS (tail)->car; | |
8c18cbfb | 5906 | if (CONSP (item)) |
e8886a1d | 5907 | menu_bar_item (XCONS (item)->car, XCONS (item)->cdr); |
8c18cbfb | 5908 | else if (VECTORP (item)) |
5ec75a55 RS |
5909 | { |
5910 | /* Loop over the char values represented in the vector. */ | |
5911 | int len = XVECTOR (item)->size; | |
5912 | int c; | |
5913 | for (c = 0; c < len; c++) | |
5914 | { | |
5915 | Lisp_Object character; | |
bb9e9bed | 5916 | XSETFASTINT (character, c); |
e8886a1d | 5917 | menu_bar_item (character, XVECTOR (item)->contents[c]); |
5ec75a55 RS |
5918 | } |
5919 | } | |
5920 | } | |
5ec75a55 RS |
5921 | } |
5922 | ||
f5e09c8b RS |
5923 | /* Add one item to menu_bar_items_vector, for KEY, ITEM_STRING and DEF. |
5924 | If there's already an item for KEY, add this DEF to it. */ | |
5925 | ||
e8886a1d RS |
5926 | Lisp_Object item_properties; |
5927 | ||
b7c49376 | 5928 | static void |
e8886a1d RS |
5929 | menu_bar_item (key, item) |
5930 | Lisp_Object key, item; | |
5ec75a55 | 5931 | { |
e8886a1d | 5932 | struct gcpro gcpro1; |
b7c49376 | 5933 | int i; |
759860a6 | 5934 | Lisp_Object tem; |
5ec75a55 | 5935 | |
e8886a1d | 5936 | if (EQ (item, Qundefined)) |
e58aa385 | 5937 | { |
f5e09c8b | 5938 | /* If a map has an explicit `undefined' as definition, |
e58aa385 | 5939 | discard any previously made menu bar item. */ |
b7c49376 | 5940 | |
35b3402f | 5941 | for (i = 0; i < menu_bar_items_index; i += 4) |
b7c49376 RS |
5942 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) |
5943 | { | |
35b3402f RS |
5944 | if (menu_bar_items_index > i + 4) |
5945 | bcopy (&XVECTOR (menu_bar_items_vector)->contents[i + 4], | |
b7c49376 | 5946 | &XVECTOR (menu_bar_items_vector)->contents[i], |
35b3402f RS |
5947 | (menu_bar_items_index - i - 4) * sizeof (Lisp_Object)); |
5948 | menu_bar_items_index -= 4; | |
b7c49376 RS |
5949 | return; |
5950 | } | |
8aa034e1 RS |
5951 | |
5952 | /* If there's no definition for this key yet, | |
5953 | just ignore `undefined'. */ | |
5954 | return; | |
e58aa385 RS |
5955 | } |
5956 | ||
e8886a1d RS |
5957 | GCPRO1 (key); /* Is this necessary? */ |
5958 | i = parse_menu_item (item, 0, 1); | |
5959 | UNGCPRO; | |
5960 | if (!i) | |
b7c49376 | 5961 | return; |
5ec75a55 | 5962 | |
759860a6 RS |
5963 | /* If this keymap has already contributed to this KEY, |
5964 | don't contribute to it a second time. */ | |
5965 | tem = Fmemq (key, menu_bar_one_keymap_changed_items); | |
5966 | if (!NILP (tem)) | |
5967 | return; | |
5968 | ||
5969 | menu_bar_one_keymap_changed_items | |
5970 | = Fcons (key, menu_bar_one_keymap_changed_items); | |
5971 | ||
e8886a1d RS |
5972 | item = XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF]; |
5973 | ||
f5e09c8b | 5974 | /* Find any existing item for this KEY. */ |
35b3402f | 5975 | for (i = 0; i < menu_bar_items_index; i += 4) |
b7c49376 RS |
5976 | if (EQ (key, XVECTOR (menu_bar_items_vector)->contents[i])) |
5977 | break; | |
5978 | ||
f5e09c8b | 5979 | /* If we did not find this KEY, add it at the end. */ |
b7c49376 RS |
5980 | if (i == menu_bar_items_index) |
5981 | { | |
5982 | /* If vector is too small, get a bigger one. */ | |
35b3402f | 5983 | if (i + 4 > XVECTOR (menu_bar_items_vector)->size) |
b7c49376 RS |
5984 | { |
5985 | Lisp_Object tem; | |
5986 | int newsize = 2 * i; | |
5987 | tem = Fmake_vector (make_number (2 * i), Qnil); | |
5988 | bcopy (XVECTOR (menu_bar_items_vector)->contents, | |
5989 | XVECTOR (tem)->contents, i * sizeof (Lisp_Object)); | |
5990 | menu_bar_items_vector = tem; | |
5991 | } | |
e8886a1d | 5992 | |
b7c49376 RS |
5993 | /* Add this item. */ |
5994 | XVECTOR (menu_bar_items_vector)->contents[i++] = key; | |
e8886a1d RS |
5995 | XVECTOR (menu_bar_items_vector)->contents[i++] |
5996 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
5997 | XVECTOR (menu_bar_items_vector)->contents[i++] = Fcons (item, Qnil); | |
35b3402f | 5998 | XVECTOR (menu_bar_items_vector)->contents[i++] = make_number (0); |
b7c49376 RS |
5999 | menu_bar_items_index = i; |
6000 | } | |
e8886a1d | 6001 | /* We did find an item for this KEY. Add ITEM to its list of maps. */ |
f5e09c8b RS |
6002 | else |
6003 | { | |
6004 | Lisp_Object old; | |
6005 | old = XVECTOR (menu_bar_items_vector)->contents[i + 2]; | |
e8886a1d | 6006 | XVECTOR (menu_bar_items_vector)->contents[i + 2] = Fcons (item, old); |
f5e09c8b | 6007 | } |
5ec75a55 RS |
6008 | } |
6009 | \f | |
e8886a1d RS |
6010 | /* This is used as the handler when calling menu_item_eval_property. */ |
6011 | static Lisp_Object | |
6012 | menu_item_eval_property_1 (arg) | |
6013 | Lisp_Object arg; | |
6014 | { | |
6015 | /* If we got a quit from within the menu computation, | |
6016 | quit all the way out of it. This takes care of C-] in the debugger. */ | |
6017 | if (CONSP (arg) && EQ (XCONS (arg)->car, Qquit)) | |
6018 | Fsignal (Qquit, Qnil); | |
6019 | ||
6020 | return Qnil; | |
6021 | } | |
6022 | ||
6023 | /* Evaluate an expression and return the result (or nil if something | |
6024 | went wrong). Used to evaluate dynamic parts of menu items. */ | |
7ee32cda | 6025 | Lisp_Object |
e8886a1d RS |
6026 | menu_item_eval_property (sexpr) |
6027 | Lisp_Object sexpr; | |
6028 | { | |
44e553a3 | 6029 | int count = specpdl_ptr - specpdl; |
e8886a1d | 6030 | Lisp_Object val; |
44e553a3 | 6031 | specbind (Qinhibit_redisplay, Qt); |
e8886a1d RS |
6032 | val = internal_condition_case_1 (Feval, sexpr, Qerror, |
6033 | menu_item_eval_property_1); | |
44e553a3 | 6034 | return unbind_to (count, val); |
e8886a1d RS |
6035 | } |
6036 | ||
6037 | /* This function parses a menu item and leaves the result in the | |
6038 | vector item_properties. | |
6039 | ITEM is a key binding, a possible menu item. | |
6040 | If NOTREAL is nonzero, only check for equivalent key bindings, don't | |
6041 | evaluate dynamic expressions in the menu item. | |
fd3613d7 | 6042 | INMENUBAR is > 0 when this is considered for an entry in a menu bar |
e8886a1d | 6043 | top level. |
fd3613d7 | 6044 | INMENUBAR is < 0 when this is considered for an entry in a keyboard menu. |
e8886a1d RS |
6045 | parse_menu_item returns true if the item is a menu item and false |
6046 | otherwise. */ | |
6047 | ||
6048 | int | |
6049 | parse_menu_item (item, notreal, inmenubar) | |
6050 | Lisp_Object item; | |
6051 | int notreal, inmenubar; | |
6052 | { | |
adc1d5c8 | 6053 | Lisp_Object def, tem, item_string, start; |
07ba902e RS |
6054 | Lisp_Object cachelist; |
6055 | Lisp_Object filter; | |
6056 | Lisp_Object keyhint; | |
e8886a1d | 6057 | int i; |
74c1de23 RS |
6058 | int newcache = 0; |
6059 | ||
07ba902e RS |
6060 | cachelist = Qnil; |
6061 | filter = Qnil; | |
6062 | keyhint = Qnil; | |
6063 | ||
e8886a1d RS |
6064 | if (!CONSP (item)) |
6065 | return 0; | |
6066 | ||
e8886a1d RS |
6067 | /* Create item_properties vector if necessary. */ |
6068 | if (NILP (item_properties)) | |
6069 | item_properties | |
6070 | = Fmake_vector (make_number (ITEM_PROPERTY_ENABLE + 1), Qnil); | |
6071 | ||
6072 | /* Initialize optional entries. */ | |
6073 | for (i = ITEM_PROPERTY_DEF; i < ITEM_PROPERTY_ENABLE; i++) | |
6074 | XVECTOR (item_properties)->contents[i] = Qnil; | |
6075 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_ENABLE] = Qt; | |
6076 | ||
6077 | /* Save the item here to protect it from GC. */ | |
6078 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_ITEM] = item; | |
6079 | ||
6080 | item_string = XCONS (item)->car; | |
6081 | ||
6082 | start = item; | |
6083 | item = XCONS (item)->cdr; | |
6084 | if (STRINGP (item_string)) | |
6085 | { | |
6086 | /* Old format menu item. */ | |
6087 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME] = item_string; | |
6088 | ||
6089 | /* Maybe help string. */ | |
6090 | if (CONSP (item) && STRINGP (XCONS (item)->car)) | |
6091 | { | |
6092 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP] | |
6093 | = XCONS (item)->car; | |
6094 | start = item; | |
6095 | item = XCONS (item)->cdr; | |
6096 | } | |
6097 | ||
6098 | /* Maybee key binding cache. */ | |
6099 | if (CONSP (item) && CONSP (XCONS (item)->car) | |
6100 | && (NILP (XCONS (XCONS (item)->car)->car) | |
6101 | || VECTORP (XCONS (XCONS (item)->car)->car))) | |
6102 | { | |
6103 | cachelist = XCONS (item)->car; | |
6104 | item = XCONS (item)->cdr; | |
6105 | } | |
6106 | ||
6107 | /* This is the real definition--the function to run. */ | |
6108 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF] = item; | |
6109 | ||
6110 | /* Get enable property, if any. */ | |
6111 | if (SYMBOLP (item)) | |
6112 | { | |
6113 | tem = Fget (item, Qmenu_enable); | |
6114 | if (!NILP (tem)) | |
6115 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_ENABLE] = tem; | |
6116 | } | |
6117 | } | |
6118 | else if (EQ (item_string, Qmenu_item) && CONSP (item)) | |
6119 | { | |
6120 | /* New format menu item. */ | |
6121 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME] | |
6122 | = XCONS (item)->car; | |
6123 | start = XCONS (item)->cdr; | |
6124 | if (CONSP (start)) | |
6125 | { | |
6126 | /* We have a real binding. */ | |
6127 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF] | |
6128 | = XCONS (start)->car; | |
6129 | ||
6130 | item = XCONS (start)->cdr; | |
6131 | /* Is there a cache list with key equivalences. */ | |
6132 | if (CONSP (item) && CONSP (XCONS (item)->car)) | |
6133 | { | |
6134 | cachelist = XCONS (item)->car; | |
6135 | item = XCONS (item)->cdr; | |
6136 | } | |
6137 | ||
6138 | /* Parse properties. */ | |
6139 | while (CONSP (item) && CONSP (XCONS (item)->cdr)) | |
6140 | { | |
6141 | tem = XCONS (item)->car; | |
6142 | item = XCONS (item)->cdr; | |
6143 | ||
6144 | if (EQ (tem, QCenable)) | |
6145 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_ENABLE] | |
6146 | = XCONS (item)->car; | |
6147 | else if (EQ (tem, QCvisible) && !notreal) | |
6148 | { | |
6149 | /* If got a visible property and that evaluates to nil | |
6150 | then ignore this item. */ | |
6151 | tem = menu_item_eval_property (XCONS (item)->car); | |
6152 | if (NILP (tem)) | |
adc1d5c8 | 6153 | return 0; |
e8886a1d RS |
6154 | } |
6155 | else if (EQ (tem, QChelp)) | |
6156 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP] | |
6157 | = XCONS (item)->car; | |
6158 | else if (EQ (tem, QCfilter)) | |
74c1de23 RS |
6159 | filter = item; |
6160 | else if (EQ (tem, QCkey_sequence)) | |
6161 | { | |
6162 | tem = XCONS (item)->car; | |
6163 | if (NILP (cachelist) | |
6164 | && (SYMBOLP (tem) || STRINGP (tem) || VECTORP (tem))) | |
6165 | /* Be GC protected. Set keyhint to item instead of tem. */ | |
6166 | keyhint = item; | |
6167 | } | |
6168 | else if (EQ (tem, QCkeys)) | |
6169 | { | |
6170 | tem = XCONS (item)->car; | |
6171 | if (CONSP (tem) || STRINGP (tem) && NILP (cachelist)) | |
6172 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ] | |
6173 | = tem; | |
6174 | } | |
e8886a1d RS |
6175 | else if (EQ (tem, QCbutton) && CONSP (XCONS (item)->car)) |
6176 | { | |
74c1de23 | 6177 | Lisp_Object type; |
e8886a1d RS |
6178 | tem = XCONS (item)->car; |
6179 | type = XCONS (tem)->car; | |
6180 | if (EQ (type, QCtoggle) || EQ (type, QCradio)) | |
6181 | { | |
6182 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED] | |
6183 | = XCONS (tem)->cdr; | |
6184 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_TYPE] | |
6185 | = type; | |
6186 | } | |
6187 | } | |
6188 | item = XCONS (item)->cdr; | |
6189 | } | |
6190 | } | |
6191 | else if (inmenubar || !NILP (start)) | |
adc1d5c8 | 6192 | return 0; |
e8886a1d RS |
6193 | } |
6194 | else | |
adc1d5c8 | 6195 | return 0; /* not a menu item */ |
e8886a1d RS |
6196 | |
6197 | /* If item string is not a string, evaluate it to get string. | |
6198 | If we don't get a string, skip this item. */ | |
6199 | item_string = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
6200 | if (!(STRINGP (item_string) || notreal)) | |
6201 | { | |
6202 | item_string = menu_item_eval_property (item_string); | |
6203 | if (!STRINGP (item_string)) | |
adc1d5c8 | 6204 | return 0; |
e8886a1d RS |
6205 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME] = item_string; |
6206 | } | |
6207 | ||
6208 | /* If got a filter apply it on definition. */ | |
6209 | def = XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF]; | |
6210 | if (!NILP (filter)) | |
6211 | { | |
c5c5a6f8 RS |
6212 | def = menu_item_eval_property (list2 (XCONS (filter)->car, |
6213 | list2 (Qquote, def))); | |
6214 | ||
e8886a1d RS |
6215 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF] = def; |
6216 | } | |
6217 | ||
6218 | /* If we got no definition, this item is just unselectable text which | |
74c1de23 | 6219 | is OK in a submenu but not in the menubar. */ |
e8886a1d | 6220 | if (NILP (def)) |
adc1d5c8 | 6221 | return (inmenubar ? 0 : 1); |
e8886a1d RS |
6222 | |
6223 | /* Enable or disable selection of item. */ | |
6224 | tem = XVECTOR (item_properties)->contents[ITEM_PROPERTY_ENABLE]; | |
6225 | if (!EQ (tem, Qt)) | |
6226 | { | |
6227 | if (notreal) | |
6228 | tem = Qt; | |
6229 | else | |
6230 | tem = menu_item_eval_property (tem); | |
6231 | if (inmenubar && NILP (tem)) | |
adc1d5c8 | 6232 | return 0; /* Ignore disabled items in menu bar. */ |
e8886a1d RS |
6233 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_ENABLE] = tem; |
6234 | } | |
6235 | ||
6236 | /* See if this is a separate pane or a submenu. */ | |
74c1de23 | 6237 | def = XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF]; |
e8886a1d | 6238 | tem = get_keymap_1 (def, 0, 1); |
9ac425d1 | 6239 | /* For a subkeymap, just record its details and exit. */ |
e8886a1d RS |
6240 | if (!NILP (tem)) |
6241 | { | |
6242 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_MAP] = tem; | |
6243 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF] = tem; | |
e8886a1d RS |
6244 | return 1; |
6245 | } | |
9ac425d1 RS |
6246 | /* At the top level in the menu bar, do likewise for commands also. |
6247 | The menu bar does not display equivalent key bindings anyway. | |
6248 | ITEM_PROPERTY_DEF is already set up properly. */ | |
6249 | if (inmenubar > 0) | |
6250 | return 1; | |
e8886a1d RS |
6251 | |
6252 | /* This is a command. See if there is an equivalent key binding. */ | |
6253 | if (NILP (cachelist)) | |
6254 | { | |
74c1de23 | 6255 | /* We have to create a cachelist. */ |
e8886a1d RS |
6256 | CHECK_IMPURE (start); |
6257 | XCONS (start)->cdr = Fcons (Fcons (Qnil, Qnil), XCONS (start)->cdr); | |
6258 | cachelist = XCONS (XCONS (start)->cdr)->car; | |
74c1de23 RS |
6259 | newcache = 1; |
6260 | tem = XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ]; | |
6261 | if (!NILP (keyhint)) | |
6262 | { | |
6263 | XCONS (cachelist)->car = XCONS (keyhint)->car; | |
6264 | newcache = 0; | |
6265 | } | |
6266 | else if (STRINGP (tem)) | |
6267 | { | |
6268 | XCONS (cachelist)->cdr = Fsubstitute_command_keys (tem); | |
6269 | XCONS (cachelist)->car = Qt; | |
6270 | } | |
6271 | } | |
6272 | tem = XCONS (cachelist)->car; | |
6273 | if (!EQ (tem, Qt)) | |
6274 | { | |
6275 | int chkcache = 0; | |
6276 | Lisp_Object prefix; | |
6277 | ||
6278 | if (!NILP (tem)) | |
6279 | tem = Fkey_binding (tem, Qnil); | |
6280 | ||
6281 | prefix = XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ]; | |
6282 | if (CONSP (prefix)) | |
6283 | { | |
6284 | def = XCONS (prefix)->car; | |
6285 | prefix = XCONS (prefix)->cdr; | |
6286 | } | |
e8886a1d | 6287 | else |
74c1de23 RS |
6288 | def = XVECTOR (item_properties)->contents[ITEM_PROPERTY_DEF]; |
6289 | ||
6290 | if (NILP (XCONS (cachelist)->car)) /* Have no saved key. */ | |
6291 | { | |
6292 | if (newcache /* Always check first time. */ | |
6293 | /* Should we check everything when precomputing key | |
6294 | bindings? */ | |
6295 | /* || notreal */ | |
6296 | /* If something had no key binding before, don't recheck it | |
6297 | because that is too slow--except if we have a list of | |
6298 | rebound commands in Vdefine_key_rebound_commands, do | |
6299 | recheck any command that appears in that list. */ | |
6300 | || (CONSP (Vdefine_key_rebound_commands) | |
6301 | && !NILP (Fmemq (def, Vdefine_key_rebound_commands)))) | |
6302 | chkcache = 1; | |
6303 | } | |
6304 | /* We had a saved key. Is it still bound to the command? */ | |
6305 | else if (NILP (tem) | |
6306 | || !EQ (tem, def) | |
6307 | /* If the command is an alias for another | |
6308 | (such as lmenu.el set it up), check if the | |
6309 | original command matches the cached command. */ | |
6310 | && !(SYMBOLP (def) && EQ (tem, XSYMBOL (def)->function))) | |
6311 | chkcache = 1; /* Need to recompute key binding. */ | |
6312 | ||
6313 | if (chkcache) | |
6314 | { | |
6315 | /* Recompute equivalent key binding. If the command is an alias | |
6316 | for another (such as lmenu.el set it up), see if the original | |
6317 | command name has equivalent keys. Otherwise look up the | |
6318 | specified command itself. We don't try both, because that | |
6319 | makes lmenu menus slow. */ | |
6320 | if (SYMBOLP (def) && SYMBOLP (XSYMBOL (def)->function) | |
6321 | && ! NILP (Fget (def, Qmenu_alias))) | |
6322 | def = XSYMBOL (def)->function; | |
6323 | tem = Fwhere_is_internal (def, Qnil, Qt, Qnil); | |
6324 | XCONS (cachelist)->car = tem; | |
6325 | if (NILP (tem)) | |
6326 | { | |
6327 | XCONS (cachelist)->cdr = Qnil; | |
6328 | chkcache = 0; | |
6329 | } | |
6330 | } | |
6331 | else if (!NILP (keyhint) && !NILP (XCONS (cachelist)->car)) | |
6332 | { | |
6333 | tem = XCONS (cachelist)->car; | |
6334 | chkcache = 1; | |
6335 | } | |
6336 | ||
6337 | newcache = chkcache; | |
6338 | if (chkcache) | |
6339 | { | |
6340 | tem = Fkey_description (tem); | |
6341 | if (CONSP (prefix)) | |
6342 | { | |
6343 | if (STRINGP (XCONS (prefix)->car)) | |
6344 | tem = concat2 (XCONS (prefix)->car, tem); | |
6345 | if (STRINGP (XCONS (prefix)->cdr)) | |
6346 | tem = concat2 (tem, XCONS (prefix)->cdr); | |
6347 | } | |
6348 | XCONS (cachelist)->cdr = tem; | |
6349 | } | |
6350 | } | |
6351 | ||
6352 | tem = XCONS (cachelist)->cdr; | |
6353 | if (newcache && !NILP (tem)) | |
e8886a1d | 6354 | { |
74c1de23 RS |
6355 | tem = concat3 (build_string (" ("), tem, build_string (")")); |
6356 | XCONS (cachelist)->cdr = tem; | |
e8886a1d RS |
6357 | } |
6358 | ||
6359 | /* If we only want to precompute equivalent key bindings, stop here. */ | |
6360 | if (notreal) | |
adc1d5c8 | 6361 | return 1; |
e8886a1d RS |
6362 | |
6363 | /* If we have an equivalent key binding, use that. */ | |
adc1d5c8 RS |
6364 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ] = tem; |
6365 | ||
6366 | /* Include this when menu help is implemented. | |
6367 | tem = XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP]; | |
6368 | if (!(NILP (tem) || STRINGP (tem))) | |
6369 | { | |
6370 | tem = menu_item_eval_property (tem); | |
6371 | if (!STRINGP (tem)) | |
6372 | tem = Qnil; | |
6373 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP] = tem; | |
6374 | } | |
e8886a1d RS |
6375 | */ |
6376 | ||
6377 | /* Handle radio buttons or toggle boxes. */ | |
6378 | tem = XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED]; | |
6379 | if (!NILP (tem)) | |
6380 | XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED] | |
6381 | = menu_item_eval_property (tem); | |
6382 | ||
e8886a1d RS |
6383 | return 1; |
6384 | } | |
7ee32cda GM |
6385 | |
6386 | ||
6387 | \f | |
6388 | /*********************************************************************** | |
6389 | Tool-bars | |
6390 | ***********************************************************************/ | |
6391 | ||
9ea173e8 GM |
6392 | /* A vector holding tool bar items while they are parsed in function |
6393 | tool_bar_items runs Each item occupies TOOL_BAR_ITEM_NSCLOTS elements | |
6394 | in the vector. */ | |
7ee32cda | 6395 | |
9ea173e8 | 6396 | static Lisp_Object tool_bar_items_vector; |
7ee32cda | 6397 | |
9ea173e8 GM |
6398 | /* A vector holding the result of parse_tool_bar_item. Layout is like |
6399 | the one for a single item in tool_bar_items_vector. */ | |
7ee32cda | 6400 | |
9ea173e8 | 6401 | static Lisp_Object tool_bar_item_properties; |
7ee32cda | 6402 | |
9ea173e8 | 6403 | /* Next free index in tool_bar_items_vector. */ |
7ee32cda | 6404 | |
9ea173e8 | 6405 | static int ntool_bar_items; |
7ee32cda | 6406 | |
9ea173e8 | 6407 | /* The symbols `tool-bar', and `:image'. */ |
7ee32cda | 6408 | |
9ea173e8 | 6409 | extern Lisp_Object Qtool_bar; |
7ee32cda GM |
6410 | Lisp_Object QCimage; |
6411 | ||
6412 | /* Function prototypes. */ | |
6413 | ||
9ea173e8 GM |
6414 | static void init_tool_bar_items P_ ((Lisp_Object)); |
6415 | static void process_tool_bar_item P_ ((Lisp_Object, Lisp_Object)); | |
6416 | static int parse_tool_bar_item P_ ((Lisp_Object, Lisp_Object)); | |
6417 | static void append_tool_bar_item P_ ((void)); | |
7ee32cda GM |
6418 | |
6419 | ||
9ea173e8 | 6420 | /* Return a vector of tool bar items for keymaps currently in effect. |
7ee32cda | 6421 | Reuse vector REUSE if non-nil. Return in *NITEMS the number of |
9ea173e8 | 6422 | tool bar items found. */ |
7ee32cda GM |
6423 | |
6424 | Lisp_Object | |
9ea173e8 | 6425 | tool_bar_items (reuse, nitems) |
7ee32cda GM |
6426 | Lisp_Object reuse; |
6427 | int *nitems; | |
6428 | { | |
6429 | Lisp_Object *maps; | |
6430 | int nmaps, i; | |
6431 | Lisp_Object oquit; | |
6432 | Lisp_Object *tmaps; | |
6433 | extern Lisp_Object Voverriding_local_map_menu_flag; | |
6434 | extern Lisp_Object Voverriding_local_map; | |
6435 | ||
6436 | *nitems = 0; | |
6437 | ||
6438 | /* In order to build the menus, we need to call the keymap | |
6439 | accessors. They all call QUIT. But this function is called | |
6440 | during redisplay, during which a quit is fatal. So inhibit | |
6441 | quitting while building the menus. We do this instead of | |
6442 | specbind because (1) errors will clear it anyway and (2) this | |
6443 | avoids risk of specpdl overflow. */ | |
6444 | oquit = Vinhibit_quit; | |
6445 | Vinhibit_quit = Qt; | |
6446 | ||
9ea173e8 GM |
6447 | /* Initialize tool_bar_items_vector and protect it from GC. */ |
6448 | init_tool_bar_items (reuse); | |
7ee32cda GM |
6449 | |
6450 | /* Build list of keymaps in maps. Set nmaps to the number of maps | |
6451 | to process. */ | |
6452 | ||
6453 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ | |
6454 | if (!NILP (Voverriding_local_map_menu_flag)) | |
6455 | { | |
6456 | /* Yes, use them (if non-nil) as well as the global map. */ | |
6457 | maps = (Lisp_Object *) alloca (3 * sizeof (maps[0])); | |
6458 | nmaps = 0; | |
6459 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
6460 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
6461 | if (!NILP (Voverriding_local_map)) | |
6462 | maps[nmaps++] = Voverriding_local_map; | |
6463 | } | |
6464 | else | |
6465 | { | |
6466 | /* No, so use major and minor mode keymaps. */ | |
6467 | nmaps = current_minor_maps (NULL, &tmaps); | |
6468 | maps = (Lisp_Object *) alloca ((nmaps + 2) * sizeof (maps[0])); | |
6469 | bcopy (tmaps, maps, nmaps * sizeof (maps[0])); | |
6470 | #ifdef USE_TEXT_PROPERTIES | |
6471 | maps[nmaps++] = get_local_map (PT, current_buffer); | |
6472 | #else | |
6473 | maps[nmaps++] = current_buffer->keymap; | |
6474 | #endif | |
6475 | } | |
6476 | ||
6477 | /* Add global keymap at the end. */ | |
6478 | maps[nmaps++] = current_global_map; | |
6479 | ||
6480 | /* Process maps in reverse order and look up in each map the prefix | |
9ea173e8 | 6481 | key `tool-bar'. */ |
7ee32cda GM |
6482 | for (i = nmaps - 1; i >= 0; --i) |
6483 | if (!NILP (maps[i])) | |
6484 | { | |
6485 | Lisp_Object keymap; | |
6486 | ||
9ea173e8 | 6487 | keymap = get_keyelt (access_keymap (maps[i], Qtool_bar, 1, 1), 0); |
7ee32cda GM |
6488 | if (!NILP (Fkeymapp (keymap))) |
6489 | { | |
6490 | Lisp_Object tail; | |
6491 | ||
6492 | /* KEYMAP is a list `(keymap (KEY . BINDING) ...)'. */ | |
6493 | for (tail = keymap; CONSP (tail); tail = XCONS (tail)->cdr) | |
6494 | { | |
6495 | Lisp_Object keydef = XCAR (tail); | |
6496 | if (CONSP (keydef)) | |
9ea173e8 | 6497 | process_tool_bar_item (XCAR (keydef), XCDR (keydef)); |
7ee32cda GM |
6498 | } |
6499 | } | |
6500 | } | |
6501 | ||
6502 | Vinhibit_quit = oquit; | |
9ea173e8 GM |
6503 | *nitems = ntool_bar_items / TOOL_BAR_ITEM_NSLOTS; |
6504 | return tool_bar_items_vector; | |
7ee32cda GM |
6505 | } |
6506 | ||
6507 | ||
6508 | /* Process the definition of KEY which is DEF. */ | |
6509 | ||
6510 | static void | |
9ea173e8 | 6511 | process_tool_bar_item (key, def) |
7ee32cda GM |
6512 | Lisp_Object key, def; |
6513 | { | |
6514 | int i; | |
6515 | extern Lisp_Object Qundefined; | |
6516 | struct gcpro gcpro1, gcpro2; | |
6517 | ||
9ea173e8 | 6518 | /* Protect KEY and DEF from GC because parse_tool_bar_item may call |
7ee32cda GM |
6519 | eval. */ |
6520 | GCPRO2 (key, def); | |
6521 | ||
6522 | if (EQ (def, Qundefined)) | |
6523 | { | |
6524 | /* If a map has an explicit `undefined' as definition, | |
6525 | discard any previously made item. */ | |
9ea173e8 | 6526 | for (i = 0; i < ntool_bar_items; i += TOOL_BAR_ITEM_NSLOTS) |
7ee32cda | 6527 | { |
9ea173e8 | 6528 | Lisp_Object *v = XVECTOR (tool_bar_items_vector)->contents + i; |
7ee32cda | 6529 | |
9ea173e8 | 6530 | if (EQ (key, v[TOOL_BAR_ITEM_KEY])) |
7ee32cda | 6531 | { |
9ea173e8 GM |
6532 | if (ntool_bar_items > i + TOOL_BAR_ITEM_NSLOTS) |
6533 | bcopy (v + TOOL_BAR_ITEM_NSLOTS, v, | |
6534 | ((ntool_bar_items - i - TOOL_BAR_ITEM_NSLOTS) | |
7ee32cda | 6535 | * sizeof (Lisp_Object))); |
9ea173e8 | 6536 | ntool_bar_items -= TOOL_BAR_ITEM_NSLOTS; |
7ee32cda GM |
6537 | break; |
6538 | } | |
6539 | } | |
6540 | } | |
9ea173e8 GM |
6541 | else if (parse_tool_bar_item (key, def)) |
6542 | /* Append a new tool bar item to tool_bar_items_vector. Accept | |
7ee32cda | 6543 | more than one definition for the same key. */ |
9ea173e8 | 6544 | append_tool_bar_item (); |
7ee32cda GM |
6545 | |
6546 | UNGCPRO; | |
6547 | } | |
6548 | ||
6549 | ||
9ea173e8 GM |
6550 | /* Parse a tool bar item specification ITEM for key KEY and return the |
6551 | result in tool_bar_item_properties. Value is zero if ITEM is | |
7ee32cda GM |
6552 | invalid. |
6553 | ||
6554 | ITEM is a list `(menu-item CAPTION BINDING PROPS...)'. | |
6555 | ||
6556 | CAPTION is the caption of the item, If it's not a string, it is | |
6557 | evaluated to get a string. | |
6558 | ||
9ea173e8 | 6559 | BINDING is the tool bar item's binding. Tool-bar items with keymaps |
7ee32cda GM |
6560 | as binding are currently ignored. |
6561 | ||
6562 | The following properties are recognized: | |
6563 | ||
6564 | - `:enable FORM'. | |
6565 | ||
9ea173e8 GM |
6566 | FORM is evaluated and specifies whether the tool bar item is |
6567 | enabled or disabled. | |
7ee32cda GM |
6568 | |
6569 | - `:visible FORM' | |
6570 | ||
9ea173e8 | 6571 | FORM is evaluated and specifies whether the tool bar item is visible. |
7ee32cda GM |
6572 | |
6573 | - `:filter FUNCTION' | |
6574 | ||
6575 | FUNCTION is invoked with one parameter `(quote BINDING)'. Its | |
6576 | result is stored as the new binding. | |
6577 | ||
6578 | - `:button (TYPE SELECTED)' | |
6579 | ||
6580 | TYPE must be one of `:radio' or `:toggle'. SELECTED is evaluated | |
6581 | and specifies whether the button is selected (pressed) or not. | |
6582 | ||
6583 | - `:image IMAGES' | |
6584 | ||
6585 | IMAGES is either a single image specification or a vector of four | |
9ea173e8 | 6586 | image specifications. See enum tool_bar_item_images. |
7ee32cda GM |
6587 | |
6588 | - `:help HELP-STRING'. | |
6589 | ||
9ea173e8 | 6590 | Gives a help string to display for the tool bar item. */ |
7ee32cda GM |
6591 | |
6592 | static int | |
9ea173e8 | 6593 | parse_tool_bar_item (key, item) |
7ee32cda GM |
6594 | Lisp_Object key, item; |
6595 | { | |
9ea173e8 GM |
6596 | /* Access slot with index IDX of vector tool_bar_item_properties. */ |
6597 | #define PROP(IDX) XVECTOR (tool_bar_item_properties)->contents[IDX] | |
7ee32cda GM |
6598 | |
6599 | Lisp_Object filter = Qnil; | |
6600 | Lisp_Object caption; | |
6601 | extern Lisp_Object QCenable, QCvisible, QChelp, QCfilter; | |
6602 | extern Lisp_Object QCbutton, QCtoggle, QCradio; | |
6603 | int i; | |
6604 | struct gcpro gcpro1; | |
6605 | ||
9ea173e8 | 6606 | /* Defininition looks like `(tool-bar-item CAPTION BINDING |
7ee32cda | 6607 | PROPS...)'. Rule out items that aren't lists, don't start with |
9ea173e8 | 6608 | `tool-bar-item' or whose rest following `tool-bar-item' is not a |
7ee32cda GM |
6609 | list. */ |
6610 | if (!CONSP (item) | |
6611 | || !EQ (XCAR (item), Qmenu_item) | |
6612 | || (item = XCDR (item), | |
6613 | !CONSP (item))) | |
6614 | return 0; | |
6615 | ||
9ea173e8 | 6616 | /* Create tool_bar_item_properties vector if necessary. Reset it to |
7ee32cda | 6617 | defaults. */ |
9ea173e8 | 6618 | if (VECTORP (tool_bar_item_properties)) |
7ee32cda | 6619 | { |
9ea173e8 | 6620 | for (i = 0; i < TOOL_BAR_ITEM_NSLOTS; ++i) |
7ee32cda GM |
6621 | PROP (i) = Qnil; |
6622 | } | |
6623 | else | |
9ea173e8 GM |
6624 | tool_bar_item_properties |
6625 | = Fmake_vector (make_number (TOOL_BAR_ITEM_NSLOTS), Qnil); | |
7ee32cda GM |
6626 | |
6627 | /* Set defaults. */ | |
9ea173e8 GM |
6628 | PROP (TOOL_BAR_ITEM_KEY) = key; |
6629 | PROP (TOOL_BAR_ITEM_ENABLED_P) = Qt; | |
7ee32cda GM |
6630 | |
6631 | /* Get the caption of the item. If the caption is not a string, | |
6632 | evaluate it to get a string. If we don't get a string, skip this | |
6633 | item. */ | |
6634 | caption = XCAR (item); | |
6635 | if (!STRINGP (caption)) | |
6636 | { | |
6637 | caption = menu_item_eval_property (caption); | |
6638 | if (!STRINGP (caption)) | |
6639 | return 0; | |
6640 | } | |
9ea173e8 | 6641 | PROP (TOOL_BAR_ITEM_CAPTION) = caption; |
7ee32cda GM |
6642 | |
6643 | /* Give up if rest following the caption is not a list. */ | |
6644 | item = XCDR (item); | |
6645 | if (!CONSP (item)) | |
6646 | return 0; | |
6647 | ||
6648 | /* Store the binding. */ | |
9ea173e8 | 6649 | PROP (TOOL_BAR_ITEM_BINDING) = XCAR (item); |
7ee32cda GM |
6650 | item = XCDR (item); |
6651 | ||
6652 | /* Process the rest of the properties. */ | |
6653 | for (; CONSP (item) && CONSP (XCDR (item)); item = XCDR (XCDR (item))) | |
6654 | { | |
6655 | Lisp_Object key, value; | |
6656 | ||
6657 | key = XCAR (item); | |
6658 | value = XCAR (XCDR (item)); | |
6659 | ||
6660 | if (EQ (key, QCenable)) | |
6661 | /* `:enable FORM'. */ | |
9ea173e8 | 6662 | PROP (TOOL_BAR_ITEM_ENABLED_P) = value; |
7ee32cda GM |
6663 | else if (EQ (key, QCvisible)) |
6664 | { | |
6665 | /* `:visible FORM'. If got a visible property and that | |
6666 | evaluates to nil then ignore this item. */ | |
6667 | if (NILP (menu_item_eval_property (value))) | |
6668 | return 0; | |
6669 | } | |
6670 | else if (EQ (key, QChelp)) | |
6671 | /* `:help HELP-STRING'. */ | |
9ea173e8 | 6672 | PROP (TOOL_BAR_ITEM_HELP) = value; |
7ee32cda GM |
6673 | else if (EQ (key, QCfilter)) |
6674 | /* ':filter FORM'. */ | |
6675 | filter = value; | |
6676 | else if (EQ (key, QCbutton) && CONSP (value)) | |
6677 | { | |
6678 | /* `:button (TYPE . SELECTED)'. */ | |
6679 | Lisp_Object type, selected; | |
6680 | ||
6681 | type = XCAR (value); | |
6682 | selected = XCDR (value); | |
6683 | if (EQ (type, QCtoggle) || EQ (type, QCradio)) | |
6684 | { | |
9ea173e8 GM |
6685 | PROP (TOOL_BAR_ITEM_SELECTED_P) = selected; |
6686 | PROP (TOOL_BAR_ITEM_TYPE) = type; | |
7ee32cda GM |
6687 | } |
6688 | } | |
6689 | else if (EQ (key, QCimage) | |
6690 | && (CONSP (value) | |
6691 | || (VECTORP (value) && XVECTOR (value)->size == 4))) | |
6692 | /* Value is either a single image specification or a vector | |
6693 | of 4 such specifications for the different buttion states. */ | |
9ea173e8 | 6694 | PROP (TOOL_BAR_ITEM_IMAGES) = value; |
7ee32cda GM |
6695 | } |
6696 | ||
6697 | /* If got a filter apply it on binding. */ | |
6698 | if (!NILP (filter)) | |
9ea173e8 | 6699 | PROP (TOOL_BAR_ITEM_BINDING) |
7ee32cda GM |
6700 | = menu_item_eval_property (list2 (filter, |
6701 | list2 (Qquote, | |
9ea173e8 | 6702 | PROP (TOOL_BAR_ITEM_BINDING)))); |
7ee32cda GM |
6703 | |
6704 | /* See if the binding is a keymap. Give up if it is. */ | |
9ea173e8 | 6705 | if (!NILP (get_keymap_1 (PROP (TOOL_BAR_ITEM_BINDING), 0, 1))) |
7ee32cda GM |
6706 | return 0; |
6707 | ||
6708 | /* Enable or disable selection of item. */ | |
9ea173e8 GM |
6709 | if (!EQ (PROP (TOOL_BAR_ITEM_ENABLED_P), Qt)) |
6710 | PROP (TOOL_BAR_ITEM_ENABLED_P) | |
6711 | = menu_item_eval_property (PROP (TOOL_BAR_ITEM_ENABLED_P)); | |
7ee32cda GM |
6712 | |
6713 | /* Handle radio buttons or toggle boxes. */ | |
9ea173e8 GM |
6714 | if (!NILP (PROP (TOOL_BAR_ITEM_SELECTED_P))) |
6715 | PROP (TOOL_BAR_ITEM_SELECTED_P) | |
6716 | = menu_item_eval_property (PROP (TOOL_BAR_ITEM_SELECTED_P)); | |
7ee32cda GM |
6717 | |
6718 | return 1; | |
6719 | ||
6720 | #undef PROP | |
6721 | } | |
6722 | ||
6723 | ||
9ea173e8 GM |
6724 | /* Initialize tool_bar_items_vector. REUSE, if non-nil, is a vector |
6725 | that can be reused. */ | |
7ee32cda GM |
6726 | |
6727 | static void | |
9ea173e8 | 6728 | init_tool_bar_items (reuse) |
7ee32cda GM |
6729 | Lisp_Object reuse; |
6730 | { | |
6731 | if (VECTORP (reuse)) | |
9ea173e8 | 6732 | tool_bar_items_vector = reuse; |
7ee32cda | 6733 | else |
9ea173e8 GM |
6734 | tool_bar_items_vector = Fmake_vector (make_number (64), Qnil); |
6735 | ntool_bar_items = 0; | |
7ee32cda GM |
6736 | } |
6737 | ||
6738 | ||
9ea173e8 GM |
6739 | /* Append parsed tool bar item properties from |
6740 | tool_bar_item_properties */ | |
7ee32cda GM |
6741 | |
6742 | static void | |
9ea173e8 | 6743 | append_tool_bar_item () |
7ee32cda GM |
6744 | { |
6745 | Lisp_Object *to, *from; | |
6746 | ||
9ea173e8 GM |
6747 | /* Enlarge tool_bar_items_vector if necessary. */ |
6748 | if (ntool_bar_items + TOOL_BAR_ITEM_NSLOTS | |
6749 | >= XVECTOR (tool_bar_items_vector)->size) | |
7ee32cda GM |
6750 | { |
6751 | Lisp_Object new_vector; | |
9ea173e8 | 6752 | int old_size = XVECTOR (tool_bar_items_vector)->size; |
7ee32cda GM |
6753 | |
6754 | new_vector = Fmake_vector (make_number (2 * old_size), Qnil); | |
9ea173e8 | 6755 | bcopy (XVECTOR (tool_bar_items_vector)->contents, |
7ee32cda GM |
6756 | XVECTOR (new_vector)->contents, |
6757 | old_size * sizeof (Lisp_Object)); | |
9ea173e8 | 6758 | tool_bar_items_vector = new_vector; |
7ee32cda GM |
6759 | } |
6760 | ||
9ea173e8 GM |
6761 | /* Append entries from tool_bar_item_properties to the end of |
6762 | tool_bar_items_vector. */ | |
6763 | to = XVECTOR (tool_bar_items_vector)->contents + ntool_bar_items; | |
6764 | from = XVECTOR (tool_bar_item_properties)->contents; | |
6765 | bcopy (from, to, TOOL_BAR_ITEM_NSLOTS * sizeof *to); | |
6766 | ntool_bar_items += TOOL_BAR_ITEM_NSLOTS; | |
7ee32cda GM |
6767 | } |
6768 | ||
6769 | ||
6770 | ||
6771 | ||
e8886a1d | 6772 | \f |
dcc408a0 RS |
6773 | /* Read a character using menus based on maps in the array MAPS. |
6774 | NMAPS is the length of MAPS. Return nil if there are no menus in the maps. | |
6775 | Return t if we displayed a menu but the user rejected it. | |
7d6de002 RS |
6776 | |
6777 | PREV_EVENT is the previous input event, or nil if we are reading | |
6778 | the first event of a key sequence. | |
6779 | ||
83d68044 | 6780 | If USED_MOUSE_MENU is non-null, then we set *USED_MOUSE_MENU to 1 |
6569cc8d | 6781 | if we used a mouse menu to read the input, or zero otherwise. If |
83d68044 | 6782 | USED_MOUSE_MENU is null, we don't dereference it. |
284f4730 JB |
6783 | |
6784 | The prompting is done based on the prompt-string of the map | |
df0f2ba1 | 6785 | and the strings associated with various map elements. |
8150596a RS |
6786 | |
6787 | This can be done with X menus or with menus put in the minibuf. | |
6788 | These are done in different ways, depending on how the input will be read. | |
6789 | Menus using X are done after auto-saving in read-char, getting the input | |
6790 | event from Fx_popup_menu; menus using the minibuf use read_char recursively | |
6791 | and do auto-saving in the inner call of read_char. */ | |
284f4730 | 6792 | |
7617111f | 6793 | static Lisp_Object |
8150596a | 6794 | read_char_x_menu_prompt (nmaps, maps, prev_event, used_mouse_menu) |
7d6de002 RS |
6795 | int nmaps; |
6796 | Lisp_Object *maps; | |
6797 | Lisp_Object prev_event; | |
6798 | int *used_mouse_menu; | |
284f4730 | 6799 | { |
7d6de002 RS |
6800 | int mapno; |
6801 | register Lisp_Object name; | |
7d6de002 RS |
6802 | Lisp_Object rest, vector; |
6803 | ||
6569cc8d JB |
6804 | if (used_mouse_menu) |
6805 | *used_mouse_menu = 0; | |
284f4730 JB |
6806 | |
6807 | /* Use local over global Menu maps */ | |
6808 | ||
7d6de002 RS |
6809 | if (! menu_prompting) |
6810 | return Qnil; | |
6811 | ||
03361bcc RS |
6812 | /* Optionally disregard all but the global map. */ |
6813 | if (inhibit_local_menu_bar_menus) | |
6814 | { | |
6815 | maps += (nmaps - 1); | |
6816 | nmaps = 1; | |
6817 | } | |
6818 | ||
7d6de002 RS |
6819 | /* Get the menu name from the first map that has one (a prompt string). */ |
6820 | for (mapno = 0; mapno < nmaps; mapno++) | |
6821 | { | |
6822 | name = map_prompt (maps[mapno]); | |
6823 | if (!NILP (name)) | |
6824 | break; | |
6825 | } | |
284f4730 | 6826 | |
7d6de002 | 6827 | /* If we don't have any menus, just read a character normally. */ |
dbc4e1c1 | 6828 | if (mapno >= nmaps) |
7d6de002 RS |
6829 | return Qnil; |
6830 | ||
1f5b1641 | 6831 | #ifdef HAVE_MENUS |
7d6de002 RS |
6832 | /* If we got to this point via a mouse click, |
6833 | use a real menu for mouse selection. */ | |
5a8d99e0 | 6834 | if (EVENT_HAS_PARAMETERS (prev_event) |
7ee32cda | 6835 | && !EQ (XCONS (prev_event)->car, Qmenu_bar) |
9ea173e8 | 6836 | && !EQ (XCONS (prev_event)->car, Qtool_bar)) |
7d6de002 RS |
6837 | { |
6838 | /* Display the menu and get the selection. */ | |
6839 | Lisp_Object *realmaps | |
6840 | = (Lisp_Object *) alloca (nmaps * sizeof (Lisp_Object)); | |
6841 | Lisp_Object value; | |
6842 | int nmaps1 = 0; | |
6843 | ||
6844 | /* Use the maps that are not nil. */ | |
6845 | for (mapno = 0; mapno < nmaps; mapno++) | |
6846 | if (!NILP (maps[mapno])) | |
6847 | realmaps[nmaps1++] = maps[mapno]; | |
6848 | ||
6849 | value = Fx_popup_menu (prev_event, Flist (nmaps1, realmaps)); | |
663258f2 JB |
6850 | if (CONSP (value)) |
6851 | { | |
68f297c5 RS |
6852 | Lisp_Object tem; |
6853 | ||
8eb4d8ef RS |
6854 | record_menu_key (XCONS (value)->car); |
6855 | ||
68f297c5 RS |
6856 | /* If we got multiple events, unread all but |
6857 | the first. | |
6858 | There is no way to prevent those unread events | |
6859 | from showing up later in last_nonmenu_event. | |
6860 | So turn symbol and integer events into lists, | |
6861 | to indicate that they came from a mouse menu, | |
6862 | so that when present in last_nonmenu_event | |
6863 | they won't confuse things. */ | |
6864 | for (tem = XCONS (value)->cdr; !NILP (tem); | |
6865 | tem = XCONS (tem)->cdr) | |
8eb4d8ef RS |
6866 | { |
6867 | record_menu_key (XCONS (tem)->car); | |
6868 | if (SYMBOLP (XCONS (tem)->car) | |
6869 | || INTEGERP (XCONS (tem)->car)) | |
6870 | XCONS (tem)->car | |
6871 | = Fcons (XCONS (tem)->car, Qnil); | |
6872 | } | |
68f297c5 | 6873 | |
663258f2 JB |
6874 | /* If we got more than one event, put all but the first |
6875 | onto this list to be read later. | |
6876 | Return just the first event now. */ | |
24597608 RS |
6877 | Vunread_command_events |
6878 | = nconc2 (XCONS (value)->cdr, Vunread_command_events); | |
663258f2 JB |
6879 | value = XCONS (value)->car; |
6880 | } | |
1c90c381 | 6881 | else if (NILP (value)) |
dcc408a0 | 6882 | value = Qt; |
6569cc8d JB |
6883 | if (used_mouse_menu) |
6884 | *used_mouse_menu = 1; | |
7d6de002 RS |
6885 | return value; |
6886 | } | |
1f5b1641 | 6887 | #endif /* HAVE_MENUS */ |
8150596a RS |
6888 | return Qnil ; |
6889 | } | |
6890 | ||
68e0de82 RS |
6891 | /* Buffer in use so far for the minibuf prompts for menu keymaps. |
6892 | We make this bigger when necessary, and never free it. */ | |
6893 | static char *read_char_minibuf_menu_text; | |
6894 | /* Size of that buffer. */ | |
6895 | static int read_char_minibuf_menu_width; | |
6896 | ||
8150596a | 6897 | static Lisp_Object |
24597608 | 6898 | read_char_minibuf_menu_prompt (commandflag, nmaps, maps) |
8150596a RS |
6899 | int commandflag ; |
6900 | int nmaps; | |
6901 | Lisp_Object *maps; | |
6902 | { | |
6903 | int mapno; | |
6904 | register Lisp_Object name; | |
6905 | int nlength; | |
788f89eb | 6906 | int width = FRAME_WIDTH (SELECTED_FRAME ()) - 4; |
8150596a | 6907 | int idx = -1; |
9fdbfdf8 | 6908 | int nobindings = 1; |
8150596a | 6909 | Lisp_Object rest, vector; |
68e0de82 | 6910 | char *menu; |
8150596a RS |
6911 | |
6912 | if (! menu_prompting) | |
6913 | return Qnil; | |
6914 | ||
68e0de82 RS |
6915 | /* Make sure we have a big enough buffer for the menu text. */ |
6916 | if (read_char_minibuf_menu_text == 0) | |
6917 | { | |
6918 | read_char_minibuf_menu_width = width + 4; | |
6919 | read_char_minibuf_menu_text = (char *) xmalloc (width + 4); | |
6920 | } | |
6921 | else if (width + 4 > read_char_minibuf_menu_width) | |
6922 | { | |
6923 | read_char_minibuf_menu_width = width + 4; | |
6924 | read_char_minibuf_menu_text | |
6925 | = (char *) xrealloc (read_char_minibuf_menu_text, width + 4); | |
6926 | } | |
6927 | menu = read_char_minibuf_menu_text; | |
6928 | ||
8150596a RS |
6929 | /* Get the menu name from the first map that has one (a prompt string). */ |
6930 | for (mapno = 0; mapno < nmaps; mapno++) | |
6931 | { | |
6932 | name = map_prompt (maps[mapno]); | |
6933 | if (!NILP (name)) | |
6934 | break; | |
6935 | } | |
6936 | ||
6937 | /* If we don't have any menus, just read a character normally. */ | |
6938 | if (mapno >= nmaps) | |
6939 | return Qnil; | |
284f4730 JB |
6940 | |
6941 | /* Prompt string always starts with map's prompt, and a space. */ | |
6942 | strcpy (menu, XSTRING (name)->data); | |
fc932ac6 | 6943 | nlength = STRING_BYTES (XSTRING (name)); |
7d6de002 | 6944 | menu[nlength++] = ':'; |
284f4730 JB |
6945 | menu[nlength++] = ' '; |
6946 | menu[nlength] = 0; | |
6947 | ||
7d6de002 RS |
6948 | /* Start prompting at start of first map. */ |
6949 | mapno = 0; | |
6950 | rest = maps[mapno]; | |
284f4730 JB |
6951 | |
6952 | /* Present the documented bindings, a line at a time. */ | |
6953 | while (1) | |
6954 | { | |
6955 | int notfirst = 0; | |
6956 | int i = nlength; | |
6957 | Lisp_Object obj; | |
6958 | int ch; | |
8066f1a1 | 6959 | Lisp_Object orig_defn_macro; |
284f4730 | 6960 | |
284f4730 | 6961 | /* Loop over elements of map. */ |
7d6de002 | 6962 | while (i < width) |
284f4730 | 6963 | { |
fd3613d7 | 6964 | Lisp_Object elt; |
284f4730 | 6965 | |
7d6de002 RS |
6966 | /* If reached end of map, start at beginning of next map. */ |
6967 | if (NILP (rest)) | |
6968 | { | |
6969 | mapno++; | |
6970 | /* At end of last map, wrap around to first map if just starting, | |
6971 | or end this line if already have something on it. */ | |
6972 | if (mapno == nmaps) | |
284f4730 | 6973 | { |
8150596a | 6974 | mapno = 0; |
40932d1a | 6975 | if (notfirst || nobindings) break; |
284f4730 | 6976 | } |
7d6de002 | 6977 | rest = maps[mapno]; |
284f4730 | 6978 | } |
7d6de002 RS |
6979 | |
6980 | /* Look at the next element of the map. */ | |
6981 | if (idx >= 0) | |
6982 | elt = XVECTOR (vector)->contents[idx]; | |
284f4730 | 6983 | else |
7d6de002 RS |
6984 | elt = Fcar_safe (rest); |
6985 | ||
8c18cbfb | 6986 | if (idx < 0 && VECTORP (elt)) |
284f4730 | 6987 | { |
7d6de002 RS |
6988 | /* If we found a dense table in the keymap, |
6989 | advanced past it, but start scanning its contents. */ | |
6990 | rest = Fcdr_safe (rest); | |
6991 | vector = elt; | |
6992 | idx = 0; | |
284f4730 | 6993 | } |
7d6de002 RS |
6994 | else |
6995 | { | |
6996 | /* An ordinary element. */ | |
fd3613d7 | 6997 | Lisp_Object event, tem; |
0a2ea221 KH |
6998 | |
6999 | if (idx < 0) | |
7000 | { | |
fd3613d7 RS |
7001 | event = Fcar_safe (elt); /* alist */ |
7002 | elt = Fcdr_safe (elt); | |
0a2ea221 | 7003 | } |
8150596a | 7004 | else |
7d6de002 | 7005 | { |
fd3613d7 | 7006 | XSETINT (event, idx); /* vector */ |
0a2ea221 KH |
7007 | } |
7008 | ||
7009 | /* Ignore the element if it has no prompt string. */ | |
fd3613d7 | 7010 | if (INTEGERP (event) && parse_menu_item (elt, 0, -1)) |
0a2ea221 KH |
7011 | { |
7012 | /* 1 if the char to type matches the string. */ | |
7013 | int char_matches; | |
7014 | Lisp_Object upcased_event, downcased_event; | |
7015 | Lisp_Object desc; | |
fd3613d7 RS |
7016 | Lisp_Object s |
7017 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_NAME]; | |
0a2ea221 KH |
7018 | |
7019 | upcased_event = Fupcase (event); | |
7020 | downcased_event = Fdowncase (event); | |
7021 | char_matches = (XINT (upcased_event) == XSTRING (s)->data[0] | |
7022 | || XINT (downcased_event) == XSTRING (s)->data[0]); | |
7023 | if (! char_matches) | |
7024 | desc = Fsingle_key_description (event); | |
7025 | ||
fd3613d7 RS |
7026 | tem |
7027 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ]; | |
7028 | if (!NILP (tem)) | |
7029 | /* Insert equivalent keybinding. */ | |
7030 | s = concat2 (s, tem); | |
7031 | ||
7032 | tem | |
7033 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_TYPE]; | |
7034 | if (EQ (tem, QCradio) || EQ (tem, QCtoggle)) | |
7035 | { | |
7036 | /* Insert button prefix. */ | |
7037 | Lisp_Object selected | |
7038 | = XVECTOR (item_properties)->contents[ITEM_PROPERTY_SELECTED]; | |
7039 | if (EQ (tem, QCradio)) | |
7040 | tem = build_string (NILP (selected) ? "(*) " : "( ) "); | |
7041 | else | |
7042 | tem = build_string (NILP (selected) ? "[X] " : "[ ] "); | |
7043 | s = concat2 (tem, s); | |
7044 | } | |
7045 | ||
7046 | ||
0a2ea221 KH |
7047 | /* If we have room for the prompt string, add it to this line. |
7048 | If this is the first on the line, always add it. */ | |
7049 | if ((XSTRING (s)->size + i + 2 | |
7050 | + (char_matches ? 0 : XSTRING (desc)->size + 3)) | |
7051 | < width | |
7052 | || !notfirst) | |
7053 | { | |
7054 | int thiswidth; | |
7055 | ||
7056 | /* Punctuate between strings. */ | |
7057 | if (notfirst) | |
7058 | { | |
7059 | strcpy (menu + i, ", "); | |
7060 | i += 2; | |
7061 | } | |
7062 | notfirst = 1; | |
7063 | nobindings = 0 ; | |
284f4730 | 7064 | |
0a2ea221 KH |
7065 | /* If the char to type doesn't match the string's |
7066 | first char, explicitly show what char to type. */ | |
7067 | if (! char_matches) | |
7068 | { | |
7069 | /* Add as much of string as fits. */ | |
7070 | thiswidth = XSTRING (desc)->size; | |
7071 | if (thiswidth + i > width) | |
7072 | thiswidth = width - i; | |
7073 | bcopy (XSTRING (desc)->data, menu + i, thiswidth); | |
7074 | i += thiswidth; | |
7075 | strcpy (menu + i, " = "); | |
7076 | i += 3; | |
7077 | } | |
7078 | ||
7079 | /* Add as much of string as fits. */ | |
7080 | thiswidth = XSTRING (s)->size; | |
7081 | if (thiswidth + i > width) | |
7082 | thiswidth = width - i; | |
7083 | bcopy (XSTRING (s)->data, menu + i, thiswidth); | |
7084 | i += thiswidth; | |
7085 | menu[i] = 0; | |
7086 | } | |
7087 | else | |
7d6de002 | 7088 | { |
0a2ea221 KH |
7089 | /* If this element does not fit, end the line now, |
7090 | and save the element for the next line. */ | |
7091 | strcpy (menu + i, "..."); | |
7092 | break; | |
7d6de002 | 7093 | } |
7d6de002 RS |
7094 | } |
7095 | ||
7096 | /* Move past this element. */ | |
8150596a | 7097 | if (idx >= 0 && idx + 1 >= XVECTOR (vector)->size) |
7d6de002 RS |
7098 | /* Handle reaching end of dense table. */ |
7099 | idx = -1; | |
7100 | if (idx >= 0) | |
7101 | idx++; | |
7102 | else | |
7103 | rest = Fcdr_safe (rest); | |
7104 | } | |
284f4730 JB |
7105 | } |
7106 | ||
7107 | /* Prompt with that and read response. */ | |
301738ed RS |
7108 | message2_nolog (menu, strlen (menu), |
7109 | ! NILP (current_buffer->enable_multibyte_characters)); | |
8150596a | 7110 | |
df0f2ba1 | 7111 | /* Make believe its not a keyboard macro in case the help char |
8150596a RS |
7112 | is pressed. Help characters are not recorded because menu prompting |
7113 | is not used on replay. | |
7114 | */ | |
c5fdd383 KH |
7115 | orig_defn_macro = current_kboard->defining_kbd_macro; |
7116 | current_kboard->defining_kbd_macro = Qnil; | |
3cb81011 KH |
7117 | do |
7118 | obj = read_char (commandflag, 0, 0, Qnil, 0); | |
8c18cbfb | 7119 | while (BUFFERP (obj)); |
c5fdd383 | 7120 | current_kboard->defining_kbd_macro = orig_defn_macro; |
284f4730 | 7121 | |
8c18cbfb | 7122 | if (!INTEGERP (obj)) |
284f4730 JB |
7123 | return obj; |
7124 | else | |
7125 | ch = XINT (obj); | |
7126 | ||
f4255cd1 | 7127 | if (! EQ (obj, menu_prompt_more_char) |
8c18cbfb | 7128 | && (!INTEGERP (menu_prompt_more_char) |
f4255cd1 | 7129 | || ! EQ (obj, make_number (Ctl (XINT (menu_prompt_more_char)))))) |
8150596a | 7130 | { |
c5fdd383 | 7131 | if (!NILP (current_kboard->defining_kbd_macro)) |
8066f1a1 | 7132 | store_kbd_macro_char (obj); |
8150596a RS |
7133 | return obj; |
7134 | } | |
7135 | /* Help char - go round again */ | |
284f4730 JB |
7136 | } |
7137 | } | |
284f4730 JB |
7138 | \f |
7139 | /* Reading key sequences. */ | |
7140 | ||
7141 | /* Follow KEY in the maps in CURRENT[0..NMAPS-1], placing its bindings | |
7142 | in DEFS[0..NMAPS-1]. Set NEXT[i] to DEFS[i] if DEFS[i] is a | |
7143 | keymap, or nil otherwise. Return the index of the first keymap in | |
7144 | which KEY has any binding, or NMAPS if no map has a binding. | |
7145 | ||
7146 | If KEY is a meta ASCII character, treat it like meta-prefix-char | |
7147 | followed by the corresponding non-meta character. Keymaps in | |
7148 | CURRENT with non-prefix bindings for meta-prefix-char become nil in | |
7149 | NEXT. | |
7150 | ||
88cb0656 JB |
7151 | If KEY has no bindings in any of the CURRENT maps, NEXT is left |
7152 | unmodified. | |
7153 | ||
569871d2 | 7154 | NEXT may be the same array as CURRENT. */ |
284f4730 JB |
7155 | |
7156 | static int | |
4e50f26a | 7157 | follow_key (key, nmaps, current, defs, next) |
284f4730 JB |
7158 | Lisp_Object key; |
7159 | Lisp_Object *current, *defs, *next; | |
7160 | int nmaps; | |
7161 | { | |
7162 | int i, first_binding; | |
569871d2 | 7163 | int did_meta = 0; |
284f4730 JB |
7164 | |
7165 | /* If KEY is a meta ASCII character, treat it like meta-prefix-char | |
569871d2 RS |
7166 | followed by the corresponding non-meta character. |
7167 | Put the results into DEFS, since we are going to alter that anyway. | |
7168 | Do not alter CURRENT or NEXT. */ | |
8c18cbfb | 7169 | if (INTEGERP (key) && (XINT (key) & CHAR_META)) |
284f4730 JB |
7170 | { |
7171 | for (i = 0; i < nmaps; i++) | |
7172 | if (! NILP (current[i])) | |
7173 | { | |
569871d2 RS |
7174 | Lisp_Object def; |
7175 | def = get_keyelt (access_keymap (current[i], | |
c6a67acd | 7176 | meta_prefix_char, 1, 0), 0); |
284f4730 JB |
7177 | |
7178 | /* Note that since we pass the resulting bindings through | |
7179 | get_keymap_1, non-prefix bindings for meta-prefix-char | |
7180 | disappear. */ | |
569871d2 | 7181 | defs[i] = get_keymap_1 (def, 0, 1); |
284f4730 JB |
7182 | } |
7183 | else | |
569871d2 | 7184 | defs[i] = Qnil; |
284f4730 | 7185 | |
569871d2 | 7186 | did_meta = 1; |
18cd2eeb | 7187 | XSETINT (key, XFASTINT (key) & ~CHAR_META); |
284f4730 JB |
7188 | } |
7189 | ||
7190 | first_binding = nmaps; | |
7191 | for (i = nmaps - 1; i >= 0; i--) | |
7192 | { | |
7193 | if (! NILP (current[i])) | |
7194 | { | |
569871d2 RS |
7195 | Lisp_Object map; |
7196 | if (did_meta) | |
7197 | map = defs[i]; | |
7198 | else | |
7199 | map = current[i]; | |
7200 | ||
c6a67acd | 7201 | defs[i] = get_keyelt (access_keymap (map, key, 1, 0), 0); |
284f4730 JB |
7202 | if (! NILP (defs[i])) |
7203 | first_binding = i; | |
7204 | } | |
7205 | else | |
7206 | defs[i] = Qnil; | |
7207 | } | |
7208 | ||
284f4730 | 7209 | /* Given the set of bindings we've found, produce the next set of maps. */ |
0a7f1fc0 JB |
7210 | if (first_binding < nmaps) |
7211 | for (i = 0; i < nmaps; i++) | |
f4255cd1 | 7212 | next[i] = NILP (defs[i]) ? Qnil : get_keymap_1 (defs[i], 0, 1); |
284f4730 JB |
7213 | |
7214 | return first_binding; | |
7215 | } | |
7216 | ||
df0f2ba1 | 7217 | /* Read a sequence of keys that ends with a non prefix character, |
f4255cd1 JB |
7218 | storing it in KEYBUF, a buffer of size BUFSIZE. |
7219 | Prompt with PROMPT. | |
284f4730 | 7220 | Return the length of the key sequence stored. |
dcc408a0 | 7221 | Return -1 if the user rejected a command menu. |
284f4730 | 7222 | |
f4255cd1 JB |
7223 | Echo starting immediately unless `prompt' is 0. |
7224 | ||
7225 | Where a key sequence ends depends on the currently active keymaps. | |
7226 | These include any minor mode keymaps active in the current buffer, | |
7227 | the current buffer's local map, and the global map. | |
7228 | ||
7229 | If a key sequence has no other bindings, we check Vfunction_key_map | |
7230 | to see if some trailing subsequence might be the beginning of a | |
7231 | function key's sequence. If so, we try to read the whole function | |
7232 | key, and substitute its symbolic name into the key sequence. | |
7233 | ||
fbcd35bd JB |
7234 | We ignore unbound `down-' mouse clicks. We turn unbound `drag-' and |
7235 | `double-' events into similar click events, if that would make them | |
7236 | bound. We try to turn `triple-' events first into `double-' events, | |
7237 | then into clicks. | |
f4255cd1 JB |
7238 | |
7239 | If we get a mouse click in a mode line, vertical divider, or other | |
7240 | non-text area, we treat the click as if it were prefixed by the | |
7241 | symbol denoting that area - `mode-line', `vertical-line', or | |
7242 | whatever. | |
7243 | ||
7244 | If the sequence starts with a mouse click, we read the key sequence | |
7245 | with respect to the buffer clicked on, not the current buffer. | |
284f4730 | 7246 | |
f4255cd1 JB |
7247 | If the user switches frames in the midst of a key sequence, we put |
7248 | off the switch-frame event until later; the next call to | |
f571ae0d RS |
7249 | read_char will return it. |
7250 | ||
7251 | If FIX_CURRENT_BUFFER is nonzero, we restore current_buffer | |
7252 | from the selected window's buffer. */ | |
48e416d4 | 7253 | |
284f4730 | 7254 | static int |
ce98e608 | 7255 | read_key_sequence (keybuf, bufsize, prompt, dont_downcase_last, |
f571ae0d | 7256 | can_return_switch_frame, fix_current_buffer) |
284f4730 JB |
7257 | Lisp_Object *keybuf; |
7258 | int bufsize; | |
84d91fda | 7259 | Lisp_Object prompt; |
309b0fc8 | 7260 | int dont_downcase_last; |
ce98e608 | 7261 | int can_return_switch_frame; |
f571ae0d | 7262 | int fix_current_buffer; |
284f4730 | 7263 | { |
f4255cd1 JB |
7264 | int count = specpdl_ptr - specpdl; |
7265 | ||
284f4730 JB |
7266 | /* How many keys there are in the current key sequence. */ |
7267 | int t; | |
7268 | ||
284f4730 JB |
7269 | /* The length of the echo buffer when we started reading, and |
7270 | the length of this_command_keys when we started reading. */ | |
7271 | int echo_start; | |
f4255cd1 | 7272 | int keys_start; |
284f4730 JB |
7273 | |
7274 | /* The number of keymaps we're scanning right now, and the number of | |
7275 | keymaps we have allocated space for. */ | |
7276 | int nmaps; | |
7277 | int nmaps_allocated = 0; | |
7278 | ||
284f4730 JB |
7279 | /* defs[0..nmaps-1] are the definitions of KEYBUF[0..t-1] in |
7280 | the current keymaps. */ | |
7281 | Lisp_Object *defs; | |
7282 | ||
f4255cd1 JB |
7283 | /* submaps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1] |
7284 | in the current keymaps, or nil where it is not a prefix. */ | |
7285 | Lisp_Object *submaps; | |
7286 | ||
e0dff5f6 RS |
7287 | /* The local map to start out with at start of key sequence. */ |
7288 | Lisp_Object orig_local_map; | |
7289 | ||
7290 | /* 1 if we have already considered switching to the local-map property | |
7291 | of the place where a mouse click occurred. */ | |
7292 | int localized_local_map = 0; | |
7293 | ||
f4255cd1 JB |
7294 | /* The index in defs[] of the first keymap that has a binding for |
7295 | this key sequence. In other words, the lowest i such that | |
7296 | defs[i] is non-nil. */ | |
284f4730 JB |
7297 | int first_binding; |
7298 | ||
f4255cd1 | 7299 | /* If t < mock_input, then KEYBUF[t] should be read as the next |
253598e4 JB |
7300 | input key. |
7301 | ||
7302 | We use this to recover after recognizing a function key. Once we | |
7303 | realize that a suffix of the current key sequence is actually a | |
7304 | function key's escape sequence, we replace the suffix with the | |
7305 | function key's binding from Vfunction_key_map. Now keybuf | |
f4255cd1 JB |
7306 | contains a new and different key sequence, so the echo area, |
7307 | this_command_keys, and the submaps and defs arrays are wrong. In | |
7308 | this situation, we set mock_input to t, set t to 0, and jump to | |
7309 | restart_sequence; the loop will read keys from keybuf up until | |
7310 | mock_input, thus rebuilding the state; and then it will resume | |
7311 | reading characters from the keyboard. */ | |
284f4730 JB |
7312 | int mock_input = 0; |
7313 | ||
253598e4 | 7314 | /* If the sequence is unbound in submaps[], then |
f4255cd1 JB |
7315 | keybuf[fkey_start..fkey_end-1] is a prefix in Vfunction_key_map, |
7316 | and fkey_map is its binding. | |
253598e4 | 7317 | |
f4255cd1 JB |
7318 | These might be > t, indicating that all function key scanning |
7319 | should hold off until t reaches them. We do this when we've just | |
7320 | recognized a function key, to avoid searching for the function | |
7321 | key's again in Vfunction_key_map. */ | |
284f4730 | 7322 | int fkey_start = 0, fkey_end = 0; |
4efda7dd | 7323 | Lisp_Object fkey_map; |
284f4730 | 7324 | |
a612e298 RS |
7325 | /* Likewise, for key_translation_map. */ |
7326 | int keytran_start = 0, keytran_end = 0; | |
7327 | Lisp_Object keytran_map; | |
7328 | ||
cd21b839 JB |
7329 | /* If we receive a ``switch-frame'' event in the middle of a key sequence, |
7330 | we put it off for later. While we're reading, we keep the event here. */ | |
4efda7dd | 7331 | Lisp_Object delayed_switch_frame; |
cd21b839 | 7332 | |
51763820 BF |
7333 | /* See the comment below... */ |
7334 | #if defined (GOBBLE_FIRST_EVENT) | |
4efda7dd | 7335 | Lisp_Object first_event; |
51763820 | 7336 | #endif |
4efda7dd | 7337 | |
309b0fc8 RS |
7338 | Lisp_Object original_uppercase; |
7339 | int original_uppercase_position = -1; | |
7340 | ||
bc536d84 | 7341 | /* Gets around Microsoft compiler limitations. */ |
309b0fc8 | 7342 | int dummyflag = 0; |
bc536d84 | 7343 | |
3b9189f8 RS |
7344 | struct buffer *starting_buffer; |
7345 | ||
e9bf89a0 RS |
7346 | /* Nonzero if we seem to have got the beginning of a binding |
7347 | in function_key_map. */ | |
7348 | int function_key_possible = 0; | |
00a78037 | 7349 | int key_translation_possible = 0; |
e9bf89a0 | 7350 | |
3fe8e9a2 RS |
7351 | /* Save the status of key translation before each step, |
7352 | so that we can restore this after downcasing. */ | |
7353 | Lisp_Object prev_fkey_map; | |
3fdfceb3 RS |
7354 | int prev_fkey_start; |
7355 | int prev_fkey_end; | |
3fe8e9a2 RS |
7356 | |
7357 | Lisp_Object prev_keytran_map; | |
3fdfceb3 RS |
7358 | int prev_keytran_start; |
7359 | int prev_keytran_end; | |
3fe8e9a2 | 7360 | |
4efda7dd RS |
7361 | int junk; |
7362 | ||
7d18f9ae RS |
7363 | raw_keybuf_count = 0; |
7364 | ||
4efda7dd RS |
7365 | last_nonmenu_event = Qnil; |
7366 | ||
7367 | delayed_switch_frame = Qnil; | |
7368 | fkey_map = Vfunction_key_map; | |
a612e298 | 7369 | keytran_map = Vkey_translation_map; |
f4255cd1 | 7370 | |
a612e298 | 7371 | /* If there is no function-key-map, turn off function key scanning. */ |
f4255cd1 JB |
7372 | if (NILP (Fkeymapp (Vfunction_key_map))) |
7373 | fkey_start = fkey_end = bufsize + 1; | |
7374 | ||
a612e298 RS |
7375 | /* If there is no key-translation-map, turn off scanning. */ |
7376 | if (NILP (Fkeymapp (Vkey_translation_map))) | |
7377 | keytran_start = keytran_end = bufsize + 1; | |
7378 | ||
284f4730 JB |
7379 | if (INTERACTIVE) |
7380 | { | |
84d91fda RS |
7381 | if (!NILP (prompt)) |
7382 | echo_prompt (XSTRING (prompt)->data); | |
a98ea3f9 | 7383 | else if (cursor_in_echo_area && echo_keystrokes) |
284f4730 JB |
7384 | /* This doesn't put in a dash if the echo buffer is empty, so |
7385 | you don't always see a dash hanging out in the minibuffer. */ | |
7386 | echo_dash (); | |
284f4730 JB |
7387 | } |
7388 | ||
f4255cd1 JB |
7389 | /* Record the initial state of the echo area and this_command_keys; |
7390 | we will need to restore them if we replay a key sequence. */ | |
0a7f1fc0 | 7391 | if (INTERACTIVE) |
df0f2ba1 | 7392 | echo_start = echo_length (); |
f4255cd1 | 7393 | keys_start = this_command_key_count; |
6321824f | 7394 | this_single_command_key_start = keys_start; |
0a7f1fc0 | 7395 | |
51763820 BF |
7396 | #if defined (GOBBLE_FIRST_EVENT) |
7397 | /* This doesn't quite work, because some of the things that read_char | |
7398 | does cannot safely be bypassed. It seems too risky to try to make | |
df0f2ba1 | 7399 | this work right. */ |
51763820 | 7400 | |
4efda7dd RS |
7401 | /* Read the first char of the sequence specially, before setting |
7402 | up any keymaps, in case a filter runs and switches buffers on us. */ | |
84d91fda | 7403 | first_event = read_char (NILP (prompt), 0, submaps, last_nonmenu_event, |
4efda7dd | 7404 | &junk); |
51763820 | 7405 | #endif /* GOBBLE_FIRST_EVENT */ |
4efda7dd | 7406 | |
e0dff5f6 RS |
7407 | orig_local_map = get_local_map (PT, current_buffer); |
7408 | ||
7b4aedb9 JB |
7409 | /* We jump here when the key sequence has been thoroughly changed, and |
7410 | we need to rescan it starting from the beginning. When we jump here, | |
7411 | keybuf[0..mock_input] holds the sequence we should reread. */ | |
07d2b8de | 7412 | replay_sequence: |
7b4aedb9 | 7413 | |
3b9189f8 | 7414 | starting_buffer = current_buffer; |
e9bf89a0 | 7415 | function_key_possible = 0; |
00a78037 | 7416 | key_translation_possible = 0; |
3b9189f8 | 7417 | |
f4255cd1 | 7418 | /* Build our list of keymaps. |
07d2b8de JB |
7419 | If we recognize a function key and replace its escape sequence in |
7420 | keybuf with its symbol, or if the sequence starts with a mouse | |
7421 | click and we need to switch buffers, we jump back here to rebuild | |
7422 | the initial keymaps from the current buffer. */ | |
df0f2ba1 | 7423 | { |
284f4730 JB |
7424 | Lisp_Object *maps; |
7425 | ||
217258d5 KH |
7426 | if (!NILP (current_kboard->Voverriding_terminal_local_map) |
7427 | || !NILP (Voverriding_local_map)) | |
284f4730 | 7428 | { |
217258d5 | 7429 | if (3 > nmaps_allocated) |
9dd3131c | 7430 | { |
217258d5 KH |
7431 | submaps = (Lisp_Object *) alloca (3 * sizeof (submaps[0])); |
7432 | defs = (Lisp_Object *) alloca (3 * sizeof (defs[0])); | |
7433 | nmaps_allocated = 3; | |
9dd3131c | 7434 | } |
217258d5 KH |
7435 | nmaps = 0; |
7436 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
7437 | submaps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
7438 | if (!NILP (Voverriding_local_map)) | |
7439 | submaps[nmaps++] = Voverriding_local_map; | |
284f4730 | 7440 | } |
9dd3131c RS |
7441 | else |
7442 | { | |
217258d5 KH |
7443 | nmaps = current_minor_maps (0, &maps); |
7444 | if (nmaps + 2 > nmaps_allocated) | |
9dd3131c | 7445 | { |
217258d5 KH |
7446 | submaps = (Lisp_Object *) alloca ((nmaps+2) * sizeof (submaps[0])); |
7447 | defs = (Lisp_Object *) alloca ((nmaps+2) * sizeof (defs[0])); | |
7448 | nmaps_allocated = nmaps + 2; | |
9dd3131c | 7449 | } |
217258d5 | 7450 | bcopy (maps, submaps, nmaps * sizeof (submaps[0])); |
497ba7a1 | 7451 | #ifdef USE_TEXT_PROPERTIES |
217258d5 | 7452 | submaps[nmaps++] = orig_local_map; |
497ba7a1 | 7453 | #else |
217258d5 | 7454 | submaps[nmaps++] = current_buffer->keymap; |
497ba7a1 | 7455 | #endif |
9dd3131c | 7456 | } |
217258d5 | 7457 | submaps[nmaps++] = current_global_map; |
284f4730 JB |
7458 | } |
7459 | ||
7460 | /* Find an accurate initial value for first_binding. */ | |
7461 | for (first_binding = 0; first_binding < nmaps; first_binding++) | |
253598e4 | 7462 | if (! NILP (submaps[first_binding])) |
284f4730 JB |
7463 | break; |
7464 | ||
3b9189f8 | 7465 | /* Start from the beginning in keybuf. */ |
f4255cd1 JB |
7466 | t = 0; |
7467 | ||
7468 | /* These are no-ops the first time through, but if we restart, they | |
7469 | revert the echo area and this_command_keys to their original state. */ | |
7470 | this_command_key_count = keys_start; | |
df0f2ba1 | 7471 | if (INTERACTIVE && t < mock_input) |
f4255cd1 JB |
7472 | echo_truncate (echo_start); |
7473 | ||
cca310da JB |
7474 | /* If the best binding for the current key sequence is a keymap, or |
7475 | we may be looking at a function key's escape sequence, keep on | |
7476 | reading. */ | |
253598e4 | 7477 | while ((first_binding < nmaps && ! NILP (submaps[first_binding])) |
cca310da JB |
7478 | || (first_binding >= nmaps |
7479 | && fkey_start < t | |
7480 | /* mock input is never part of a function key's sequence. */ | |
a612e298 | 7481 | && mock_input <= fkey_start) |
0d882d52 KH |
7482 | || (first_binding >= nmaps |
7483 | && keytran_start < t && key_translation_possible) | |
e9bf89a0 RS |
7484 | /* Don't return in the middle of a possible function key sequence, |
7485 | if the only bindings we found were via case conversion. | |
7486 | Thus, if ESC O a has a function-key-map translation | |
7487 | and ESC o has a binding, don't return after ESC O, | |
7488 | so that we can translate ESC O plus the next character. */ | |
4e50f26a | 7489 | ) |
284f4730 JB |
7490 | { |
7491 | Lisp_Object key; | |
7d6de002 | 7492 | int used_mouse_menu = 0; |
284f4730 | 7493 | |
7b4aedb9 JB |
7494 | /* Where the last real key started. If we need to throw away a |
7495 | key that has expanded into more than one element of keybuf | |
7496 | (say, a mouse click on the mode line which is being treated | |
7497 | as [mode-line (mouse-...)], then we backtrack to this point | |
7498 | of keybuf. */ | |
7499 | int last_real_key_start; | |
7500 | ||
0a7f1fc0 JB |
7501 | /* These variables are analogous to echo_start and keys_start; |
7502 | while those allow us to restart the entire key sequence, | |
7503 | echo_local_start and keys_local_start allow us to throw away | |
7504 | just one key. */ | |
f4255cd1 JB |
7505 | int echo_local_start, keys_local_start, local_first_binding; |
7506 | ||
284f4730 | 7507 | if (t >= bufsize) |
3fe8e9a2 | 7508 | error ("Key sequence too long"); |
284f4730 | 7509 | |
f4255cd1 JB |
7510 | if (INTERACTIVE) |
7511 | echo_local_start = echo_length (); | |
7512 | keys_local_start = this_command_key_count; | |
7513 | local_first_binding = first_binding; | |
df0f2ba1 | 7514 | |
f4255cd1 | 7515 | replay_key: |
0a7f1fc0 | 7516 | /* These are no-ops, unless we throw away a keystroke below and |
f4255cd1 JB |
7517 | jumped back up to replay_key; in that case, these restore the |
7518 | variables to their original state, allowing us to replay the | |
0a7f1fc0 | 7519 | loop. */ |
40932d1a | 7520 | if (INTERACTIVE && t < mock_input) |
f4255cd1 | 7521 | echo_truncate (echo_local_start); |
0a7f1fc0 JB |
7522 | this_command_key_count = keys_local_start; |
7523 | first_binding = local_first_binding; | |
7524 | ||
7e85b935 RS |
7525 | /* By default, assume each event is "real". */ |
7526 | last_real_key_start = t; | |
7527 | ||
f4255cd1 | 7528 | /* Does mock_input indicate that we are re-reading a key sequence? */ |
284f4730 JB |
7529 | if (t < mock_input) |
7530 | { | |
7531 | key = keybuf[t]; | |
7532 | add_command_key (key); | |
a98ea3f9 RS |
7533 | if (echo_keystrokes) |
7534 | echo_char (key); | |
284f4730 | 7535 | } |
253598e4 JB |
7536 | |
7537 | /* If not, we should actually read a character. */ | |
284f4730 JB |
7538 | else |
7539 | { | |
a6d53864 RS |
7540 | struct buffer *buf = current_buffer; |
7541 | ||
beecf6a1 | 7542 | { |
c5fdd383 KH |
7543 | #ifdef MULTI_KBOARD |
7544 | KBOARD *interrupted_kboard = current_kboard; | |
788f89eb | 7545 | struct frame *interrupted_frame = SELECTED_FRAME (); |
c5fdd383 | 7546 | if (setjmp (wrong_kboard_jmpbuf)) |
beecf6a1 | 7547 | { |
5798cf15 KH |
7548 | if (!NILP (delayed_switch_frame)) |
7549 | { | |
c5fdd383 | 7550 | interrupted_kboard->kbd_queue |
5798cf15 | 7551 | = Fcons (delayed_switch_frame, |
c5fdd383 | 7552 | interrupted_kboard->kbd_queue); |
5798cf15 KH |
7553 | delayed_switch_frame = Qnil; |
7554 | } | |
beecf6a1 | 7555 | while (t > 0) |
c5fdd383 KH |
7556 | interrupted_kboard->kbd_queue |
7557 | = Fcons (keybuf[--t], interrupted_kboard->kbd_queue); | |
5798cf15 KH |
7558 | |
7559 | /* If the side queue is non-empty, ensure it begins with a | |
7560 | switch-frame, so we'll replay it in the right context. */ | |
c5fdd383 KH |
7561 | if (CONSP (interrupted_kboard->kbd_queue) |
7562 | && (key = XCONS (interrupted_kboard->kbd_queue)->car, | |
5798cf15 KH |
7563 | !(EVENT_HAS_PARAMETERS (key) |
7564 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key)), | |
7565 | Qswitch_frame)))) | |
df0f2ba1 KH |
7566 | { |
7567 | Lisp_Object frame; | |
7568 | XSETFRAME (frame, interrupted_frame); | |
c5fdd383 | 7569 | interrupted_kboard->kbd_queue |
df0f2ba1 | 7570 | = Fcons (make_lispy_switch_frame (frame), |
c5fdd383 | 7571 | interrupted_kboard->kbd_queue); |
df0f2ba1 | 7572 | } |
beecf6a1 | 7573 | mock_input = 0; |
a6e0153c | 7574 | orig_local_map = get_local_map (PT, current_buffer); |
beecf6a1 KH |
7575 | goto replay_sequence; |
7576 | } | |
bded54dd | 7577 | #endif |
beecf6a1 KH |
7578 | key = read_char (NILP (prompt), nmaps, submaps, last_nonmenu_event, |
7579 | &used_mouse_menu); | |
7580 | } | |
284f4730 | 7581 | |
dcc408a0 RS |
7582 | /* read_char returns t when it shows a menu and the user rejects it. |
7583 | Just return -1. */ | |
7584 | if (EQ (key, Qt)) | |
7d18f9ae RS |
7585 | { |
7586 | unbind_to (count, Qnil); | |
7587 | return -1; | |
7588 | } | |
dcc408a0 | 7589 | |
f4255cd1 | 7590 | /* read_char returns -1 at the end of a macro. |
284f4730 JB |
7591 | Emacs 18 handles this by returning immediately with a |
7592 | zero, so that's what we'll do. */ | |
8c18cbfb | 7593 | if (INTEGERP (key) && XINT (key) == -1) |
cd21b839 | 7594 | { |
f4255cd1 | 7595 | t = 0; |
bc536d84 RS |
7596 | /* The Microsoft C compiler can't handle the goto that |
7597 | would go here. */ | |
309b0fc8 | 7598 | dummyflag = 1; |
bc536d84 | 7599 | break; |
cd21b839 | 7600 | } |
df0f2ba1 | 7601 | |
3cb81011 KH |
7602 | /* If the current buffer has been changed from under us, the |
7603 | keymap may have changed, so replay the sequence. */ | |
8c18cbfb | 7604 | if (BUFFERP (key)) |
3cb81011 KH |
7605 | { |
7606 | mock_input = t; | |
f571ae0d RS |
7607 | /* Reset the current buffer from the selected window |
7608 | in case something changed the former and not the latter. | |
7609 | This is to be more consistent with the behavior | |
7610 | of the command_loop_1. */ | |
7611 | if (fix_current_buffer) | |
a94a4335 | 7612 | { |
788f89eb | 7613 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 KH |
7614 | Fkill_emacs (Qnil); |
7615 | if (XBUFFER (XWINDOW (selected_window)->buffer) != current_buffer) | |
7616 | Fset_buffer (XWINDOW (selected_window)->buffer); | |
7617 | } | |
f571ae0d | 7618 | |
a6e0153c | 7619 | orig_local_map = get_local_map (PT, current_buffer); |
3cb81011 KH |
7620 | goto replay_sequence; |
7621 | } | |
7622 | ||
3b9189f8 RS |
7623 | /* If we have a quit that was typed in another frame, and |
7624 | quit_throw_to_read_char switched buffers, | |
7625 | replay to get the right keymap. */ | |
9343ab07 | 7626 | if (XINT (key) == quit_char && current_buffer != starting_buffer) |
3b9189f8 | 7627 | { |
7d18f9ae RS |
7628 | GROW_RAW_KEYBUF; |
7629 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; | |
3b9189f8 RS |
7630 | keybuf[t++] = key; |
7631 | mock_input = t; | |
7632 | Vquit_flag = Qnil; | |
a6e0153c | 7633 | orig_local_map = get_local_map (PT, current_buffer); |
3b9189f8 RS |
7634 | goto replay_sequence; |
7635 | } | |
3cb81011 | 7636 | |
284f4730 | 7637 | Vquit_flag = Qnil; |
7d18f9ae RS |
7638 | |
7639 | if (EVENT_HAS_PARAMETERS (key) | |
7640 | && EQ (EVENT_HEAD_KIND (EVENT_HEAD (key)), Qswitch_frame)) | |
7641 | { | |
7642 | /* If we're at the beginning of a key sequence, and the caller | |
7643 | says it's okay, go ahead and return this event. If we're | |
7644 | in the midst of a key sequence, delay it until the end. */ | |
7645 | if (t > 0 || !can_return_switch_frame) | |
7646 | { | |
7647 | delayed_switch_frame = key; | |
7648 | goto replay_key; | |
7649 | } | |
7650 | } | |
7651 | ||
7652 | GROW_RAW_KEYBUF; | |
7653 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; | |
7e85b935 | 7654 | } |
284f4730 | 7655 | |
df0f2ba1 | 7656 | /* Clicks in non-text areas get prefixed by the symbol |
7e85b935 RS |
7657 | in their CHAR-ADDRESS field. For example, a click on |
7658 | the mode line is prefixed by the symbol `mode-line'. | |
7659 | ||
7660 | Furthermore, key sequences beginning with mouse clicks | |
7661 | are read using the keymaps of the buffer clicked on, not | |
7662 | the current buffer. So we may have to switch the buffer | |
7663 | here. | |
7664 | ||
7665 | When we turn one event into two events, we must make sure | |
7666 | that neither of the two looks like the original--so that, | |
7667 | if we replay the events, they won't be expanded again. | |
7668 | If not for this, such reexpansion could happen either here | |
7669 | or when user programs play with this-command-keys. */ | |
7670 | if (EVENT_HAS_PARAMETERS (key)) | |
7671 | { | |
9b8eb840 | 7672 | Lisp_Object kind; |
cca310da | 7673 | |
9b8eb840 | 7674 | kind = EVENT_HEAD_KIND (EVENT_HEAD (key)); |
7e85b935 | 7675 | if (EQ (kind, Qmouse_click)) |
0a7f1fc0 | 7676 | { |
9b8eb840 | 7677 | Lisp_Object window, posn; |
f4255cd1 | 7678 | |
9b8eb840 KH |
7679 | window = POSN_WINDOW (EVENT_START (key)); |
7680 | posn = POSN_BUFFER_POSN (EVENT_START (key)); | |
7ee32cda | 7681 | |
8c18cbfb | 7682 | if (CONSP (posn)) |
0a7f1fc0 | 7683 | { |
7e85b935 RS |
7684 | /* We're looking at the second event of a |
7685 | sequence which we expanded before. Set | |
7686 | last_real_key_start appropriately. */ | |
7687 | if (t > 0) | |
7688 | last_real_key_start = t - 1; | |
cd21b839 | 7689 | } |
7e85b935 RS |
7690 | |
7691 | /* Key sequences beginning with mouse clicks are | |
7692 | read using the keymaps in the buffer clicked on, | |
7693 | not the current buffer. If we're at the | |
7694 | beginning of a key sequence, switch buffers. */ | |
7695 | if (last_real_key_start == 0 | |
8c18cbfb KH |
7696 | && WINDOWP (window) |
7697 | && BUFFERP (XWINDOW (window)->buffer) | |
7e85b935 | 7698 | && XBUFFER (XWINDOW (window)->buffer) != current_buffer) |
cd21b839 | 7699 | { |
7d18f9ae | 7700 | XVECTOR (raw_keybuf)->contents[raw_keybuf_count++] = key; |
7e85b935 RS |
7701 | keybuf[t] = key; |
7702 | mock_input = t + 1; | |
7703 | ||
7704 | /* Arrange to go back to the original buffer once we're | |
7705 | done reading the key sequence. Note that we can't | |
7706 | use save_excursion_{save,restore} here, because they | |
7707 | save point as well as the current buffer; we don't | |
7708 | want to save point, because redisplay may change it, | |
7709 | to accommodate a Fset_window_start or something. We | |
7710 | don't want to do this at the top of the function, | |
7711 | because we may get input from a subprocess which | |
7712 | wants to change the selected window and stuff (say, | |
7713 | emacsclient). */ | |
7714 | record_unwind_protect (Fset_buffer, Fcurrent_buffer ()); | |
7715 | ||
788f89eb | 7716 | if (! FRAME_LIVE_P (XFRAME (selected_frame))) |
a94a4335 | 7717 | Fkill_emacs (Qnil); |
7e85b935 | 7718 | set_buffer_internal (XBUFFER (XWINDOW (window)->buffer)); |
e0dff5f6 | 7719 | orig_local_map = get_local_map (PT, current_buffer); |
7e85b935 | 7720 | goto replay_sequence; |
0a7f1fc0 | 7721 | } |
7ee32cda | 7722 | |
e0dff5f6 RS |
7723 | /* For a mouse click, get the local text-property keymap |
7724 | of the place clicked on, rather than point. */ | |
7ee32cda GM |
7725 | if (last_real_key_start == 0 |
7726 | && CONSP (XCONS (key)->cdr) | |
e0dff5f6 | 7727 | && ! localized_local_map) |
5ec75a55 | 7728 | { |
e0dff5f6 RS |
7729 | Lisp_Object map_here, start, pos; |
7730 | ||
7731 | localized_local_map = 1; | |
7732 | start = EVENT_START (key); | |
7ee32cda | 7733 | |
e0dff5f6 RS |
7734 | if (CONSP (start) && CONSP (XCONS (start)->cdr)) |
7735 | { | |
7736 | pos = POSN_BUFFER_POSN (start); | |
b78ce8fb RS |
7737 | if (INTEGERP (pos) |
7738 | && XINT (pos) >= BEG && XINT (pos) <= Z) | |
e0dff5f6 RS |
7739 | { |
7740 | map_here = get_local_map (XINT (pos), current_buffer); | |
7741 | if (!EQ (map_here, orig_local_map)) | |
7742 | { | |
7743 | orig_local_map = map_here; | |
7744 | keybuf[t] = key; | |
7745 | mock_input = t + 1; | |
5ec75a55 | 7746 | |
e0dff5f6 RS |
7747 | goto replay_sequence; |
7748 | } | |
7749 | } | |
7750 | } | |
7751 | } | |
7752 | ||
7753 | /* Expand mode-line and scroll-bar events into two events: | |
7754 | use posn as a fake prefix key. */ | |
7755 | if (SYMBOLP (posn)) | |
7756 | { | |
7e85b935 | 7757 | if (t + 1 >= bufsize) |
3fe8e9a2 | 7758 | error ("Key sequence too long"); |
7e85b935 RS |
7759 | keybuf[t] = posn; |
7760 | keybuf[t+1] = key; | |
7761 | mock_input = t + 2; | |
7ee32cda | 7762 | |
7e85b935 RS |
7763 | /* Zap the position in key, so we know that we've |
7764 | expanded it, and don't try to do so again. */ | |
7765 | POSN_BUFFER_POSN (EVENT_START (key)) | |
7766 | = Fcons (posn, Qnil); | |
7ee32cda GM |
7767 | |
7768 | /* If on a mode line string with a local keymap, | |
7769 | reconsider the key sequence with that keymap. */ | |
7770 | if (CONSP (POSN_STRING (EVENT_START (key)))) | |
7771 | { | |
7772 | Lisp_Object string, pos, map; | |
7773 | ||
7774 | string = POSN_STRING (EVENT_START (key)); | |
7775 | pos = XCDR (string); | |
7776 | string = XCAR (string); | |
7777 | ||
7778 | if (pos >= 0 | |
7779 | && pos < XSTRING (string)->size | |
7780 | && (map = Fget_text_property (pos, Qlocal_map, | |
7781 | string), | |
7782 | !NILP (map))) | |
7783 | { | |
7784 | orig_local_map = map; | |
7785 | goto replay_sequence; | |
7786 | } | |
7787 | } | |
7788 | ||
7e85b935 | 7789 | goto replay_key; |
5ec75a55 | 7790 | } |
0a7f1fc0 | 7791 | } |
7a80a6f6 RS |
7792 | else if (CONSP (XCONS (key)->cdr) |
7793 | && CONSP (EVENT_START (key)) | |
7794 | && CONSP (XCONS (EVENT_START (key))->cdr)) | |
7e85b935 | 7795 | { |
9b8eb840 | 7796 | Lisp_Object posn; |
7e85b935 | 7797 | |
9b8eb840 | 7798 | posn = POSN_BUFFER_POSN (EVENT_START (key)); |
7e85b935 RS |
7799 | /* Handle menu-bar events: |
7800 | insert the dummy prefix event `menu-bar'. */ | |
9ea173e8 | 7801 | if (EQ (posn, Qmenu_bar) || EQ (posn, Qtool_bar)) |
7e85b935 RS |
7802 | { |
7803 | if (t + 1 >= bufsize) | |
3fe8e9a2 | 7804 | error ("Key sequence too long"); |
7e85b935 RS |
7805 | keybuf[t] = posn; |
7806 | keybuf[t+1] = key; | |
7807 | ||
7808 | /* Zap the position in key, so we know that we've | |
7809 | expanded it, and don't try to do so again. */ | |
7810 | POSN_BUFFER_POSN (EVENT_START (key)) | |
7811 | = Fcons (posn, Qnil); | |
7812 | ||
7813 | mock_input = t + 2; | |
7814 | goto replay_sequence; | |
7815 | } | |
8c18cbfb | 7816 | else if (CONSP (posn)) |
7e85b935 RS |
7817 | { |
7818 | /* We're looking at the second event of a | |
7819 | sequence which we expanded before. Set | |
7820 | last_real_key_start appropriately. */ | |
7821 | if (last_real_key_start == t && t > 0) | |
7822 | last_real_key_start = t - 1; | |
7823 | } | |
a6d53864 | 7824 | } |
284f4730 | 7825 | } |
f4255cd1 JB |
7826 | |
7827 | /* We have finally decided that KEY is something we might want | |
7828 | to look up. */ | |
284f4730 JB |
7829 | first_binding = (follow_key (key, |
7830 | nmaps - first_binding, | |
253598e4 | 7831 | submaps + first_binding, |
284f4730 | 7832 | defs + first_binding, |
4e50f26a | 7833 | submaps + first_binding) |
284f4730 | 7834 | + first_binding); |
0a7f1fc0 | 7835 | |
f4255cd1 | 7836 | /* If KEY wasn't bound, we'll try some fallbacks. */ |
0a7f1fc0 JB |
7837 | if (first_binding >= nmaps) |
7838 | { | |
9b8eb840 | 7839 | Lisp_Object head; |
0a7f1fc0 | 7840 | |
9b8eb840 | 7841 | head = EVENT_HEAD (key); |
24736fbc | 7842 | if (help_char_p (head) && t > 0) |
7e85b935 RS |
7843 | { |
7844 | read_key_sequence_cmd = Vprefix_help_command; | |
7845 | keybuf[t++] = key; | |
7846 | last_nonmenu_event = key; | |
bc536d84 RS |
7847 | /* The Microsoft C compiler can't handle the goto that |
7848 | would go here. */ | |
309b0fc8 | 7849 | dummyflag = 1; |
0d882d52 | 7850 | break; |
7e85b935 RS |
7851 | } |
7852 | ||
8c18cbfb | 7853 | if (SYMBOLP (head)) |
0a7f1fc0 | 7854 | { |
9b8eb840 KH |
7855 | Lisp_Object breakdown; |
7856 | int modifiers; | |
0a7f1fc0 | 7857 | |
9b8eb840 KH |
7858 | breakdown = parse_modifiers (head); |
7859 | modifiers = XINT (XCONS (XCONS (breakdown)->cdr)->car); | |
559f9d04 RS |
7860 | /* Attempt to reduce an unbound mouse event to a simpler |
7861 | event that is bound: | |
7862 | Drags reduce to clicks. | |
7863 | Double-clicks reduce to clicks. | |
7864 | Triple-clicks reduce to double-clicks, then to clicks. | |
7865 | Down-clicks are eliminated. | |
7866 | Double-downs reduce to downs, then are eliminated. | |
7867 | Triple-downs reduce to double-downs, then to downs, | |
7868 | then are eliminated. */ | |
7869 | if (modifiers & (down_modifier | drag_modifier | |
7870 | | double_modifier | triple_modifier)) | |
0a7f1fc0 | 7871 | { |
559f9d04 RS |
7872 | while (modifiers & (down_modifier | drag_modifier |
7873 | | double_modifier | triple_modifier)) | |
fbcd35bd JB |
7874 | { |
7875 | Lisp_Object new_head, new_click; | |
7876 | if (modifiers & triple_modifier) | |
7877 | modifiers ^= (double_modifier | triple_modifier); | |
bc536d84 RS |
7878 | else if (modifiers & double_modifier) |
7879 | modifiers &= ~double_modifier; | |
7880 | else if (modifiers & drag_modifier) | |
7881 | modifiers &= ~drag_modifier; | |
559f9d04 RS |
7882 | else |
7883 | { | |
7884 | /* Dispose of this `down' event by simply jumping | |
7885 | back to replay_key, to get another event. | |
7886 | ||
7887 | Note that if this event came from mock input, | |
7888 | then just jumping back to replay_key will just | |
7889 | hand it to us again. So we have to wipe out any | |
7890 | mock input. | |
7891 | ||
7892 | We could delete keybuf[t] and shift everything | |
7893 | after that to the left by one spot, but we'd also | |
7894 | have to fix up any variable that points into | |
7895 | keybuf, and shifting isn't really necessary | |
7896 | anyway. | |
7897 | ||
7898 | Adding prefixes for non-textual mouse clicks | |
7899 | creates two characters of mock input, and both | |
7900 | must be thrown away. If we're only looking at | |
7901 | the prefix now, we can just jump back to | |
7902 | replay_key. On the other hand, if we've already | |
7903 | processed the prefix, and now the actual click | |
7904 | itself is giving us trouble, then we've lost the | |
7905 | state of the keymaps we want to backtrack to, and | |
7906 | we need to replay the whole sequence to rebuild | |
7907 | it. | |
7908 | ||
7909 | Beyond that, only function key expansion could | |
7910 | create more than two keys, but that should never | |
7911 | generate mouse events, so it's okay to zero | |
7912 | mock_input in that case too. | |
7913 | ||
7914 | Isn't this just the most wonderful code ever? */ | |
7915 | if (t == last_real_key_start) | |
7916 | { | |
7917 | mock_input = 0; | |
7918 | goto replay_key; | |
7919 | } | |
7920 | else | |
7921 | { | |
7922 | mock_input = last_real_key_start; | |
7923 | goto replay_sequence; | |
7924 | } | |
7925 | } | |
7926 | ||
27203ead RS |
7927 | new_head |
7928 | = apply_modifiers (modifiers, XCONS (breakdown)->car); | |
7929 | new_click | |
7930 | = Fcons (new_head, Fcons (EVENT_START (key), Qnil)); | |
fbcd35bd JB |
7931 | |
7932 | /* Look for a binding for this new key. follow_key | |
7933 | promises that it didn't munge submaps the | |
7934 | last time we called it, since key was unbound. */ | |
27203ead RS |
7935 | first_binding |
7936 | = (follow_key (new_click, | |
7937 | nmaps - local_first_binding, | |
7938 | submaps + local_first_binding, | |
7939 | defs + local_first_binding, | |
4e50f26a | 7940 | submaps + local_first_binding) |
27203ead | 7941 | + local_first_binding); |
fbcd35bd JB |
7942 | |
7943 | /* If that click is bound, go for it. */ | |
7944 | if (first_binding < nmaps) | |
7945 | { | |
7946 | key = new_click; | |
7947 | break; | |
7948 | } | |
7949 | /* Otherwise, we'll leave key set to the drag event. */ | |
7950 | } | |
0a7f1fc0 JB |
7951 | } |
7952 | } | |
7953 | } | |
7954 | ||
284f4730 | 7955 | keybuf[t++] = key; |
7d6de002 RS |
7956 | /* Normally, last_nonmenu_event gets the previous key we read. |
7957 | But when a mouse popup menu is being used, | |
7958 | we don't update last_nonmenu_event; it continues to hold the mouse | |
7959 | event that preceded the first level of menu. */ | |
7960 | if (!used_mouse_menu) | |
7961 | last_nonmenu_event = key; | |
284f4730 | 7962 | |
6321824f RS |
7963 | /* Record what part of this_command_keys is the current key sequence. */ |
7964 | this_single_command_key_start = this_command_key_count - t; | |
7965 | ||
3fe8e9a2 RS |
7966 | prev_fkey_map = fkey_map; |
7967 | prev_fkey_start = fkey_start; | |
7968 | prev_fkey_end = fkey_end; | |
7969 | ||
7970 | prev_keytran_map = keytran_map; | |
7971 | prev_keytran_start = keytran_start; | |
7972 | prev_keytran_end = keytran_end; | |
7973 | ||
284f4730 | 7974 | /* If the sequence is unbound, see if we can hang a function key |
253598e4 JB |
7975 | off the end of it. We only want to scan real keyboard input |
7976 | for function key sequences, so if mock_input says that we're | |
f4255cd1 | 7977 | re-reading old events, don't examine it. */ |
4e50f26a | 7978 | if (first_binding >= nmaps |
253598e4 | 7979 | && t >= mock_input) |
284f4730 JB |
7980 | { |
7981 | Lisp_Object fkey_next; | |
7982 | ||
e9bf89a0 RS |
7983 | /* Continue scan from fkey_end until we find a bound suffix. |
7984 | If we fail, increment fkey_start | |
7985 | and start fkey_end from there. */ | |
284f4730 JB |
7986 | while (fkey_end < t) |
7987 | { | |
f4255cd1 JB |
7988 | Lisp_Object key; |
7989 | ||
7990 | key = keybuf[fkey_end++]; | |
067ffa38 JB |
7991 | /* Look up meta-characters by prefixing them |
7992 | with meta_prefix_char. I hate this. */ | |
8c18cbfb | 7993 | if (INTEGERP (key) && XINT (key) & meta_modifier) |
f4255cd1 | 7994 | { |
e74fbc70 RS |
7995 | fkey_next |
7996 | = get_keymap_1 | |
f4255cd1 | 7997 | (get_keyelt |
c6a67acd | 7998 | (access_keymap (fkey_map, meta_prefix_char, 1, 0), 0), |
f4255cd1 | 7999 | 0, 1); |
bb9e9bed | 8000 | XSETFASTINT (key, XFASTINT (key) & ~meta_modifier); |
f4255cd1 | 8001 | } |
067ffa38 JB |
8002 | else |
8003 | fkey_next = fkey_map; | |
8004 | ||
e74fbc70 | 8005 | fkey_next |
c700c260 RS |
8006 | = get_keyelt (access_keymap (fkey_next, key, 1, 0), 1); |
8007 | ||
8008 | /* Handle symbol with autoload definition. */ | |
0afc861b RS |
8009 | if (SYMBOLP (fkey_next) && ! NILP (Ffboundp (fkey_next)) |
8010 | && CONSP (XSYMBOL (fkey_next)->function) | |
8011 | && EQ (XCONS (XSYMBOL (fkey_next)->function)->car, Qautoload)) | |
8012 | do_autoload (XSYMBOL (fkey_next)->function, | |
8013 | fkey_next); | |
c700c260 RS |
8014 | |
8015 | /* Handle a symbol whose function definition is a keymap | |
8016 | or an array. */ | |
0afc861b RS |
8017 | if (SYMBOLP (fkey_next) && ! NILP (Ffboundp (fkey_next)) |
8018 | && (!NILP (Farrayp (XSYMBOL (fkey_next)->function)) | |
8019 | || !NILP (Fkeymapp (XSYMBOL (fkey_next)->function)))) | |
8020 | fkey_next = XSYMBOL (fkey_next)->function; | |
067ffa38 | 8021 | |
7a80a6f6 RS |
8022 | #if 0 /* I didn't turn this on, because it might cause trouble |
8023 | for the mapping of return into C-m and tab into C-i. */ | |
8024 | /* Optionally don't map function keys into other things. | |
8025 | This enables the user to redefine kp- keys easily. */ | |
8026 | if (SYMBOLP (key) && !NILP (Vinhibit_function_key_mapping)) | |
8027 | fkey_next = Qnil; | |
8028 | #endif | |
8029 | ||
1abe6abe RS |
8030 | /* If the function key map gives a function, not an |
8031 | array, then call the function with no args and use | |
8032 | its value instead. */ | |
8033 | if (SYMBOLP (fkey_next) && ! NILP (Ffboundp (fkey_next)) | |
8034 | && fkey_end == t) | |
8035 | { | |
8036 | struct gcpro gcpro1, gcpro2, gcpro3; | |
8037 | Lisp_Object tem; | |
8038 | tem = fkey_next; | |
8039 | ||
8040 | GCPRO3 (fkey_map, keytran_map, delayed_switch_frame); | |
84d91fda | 8041 | fkey_next = call1 (fkey_next, prompt); |
1abe6abe RS |
8042 | UNGCPRO; |
8043 | /* If the function returned something invalid, | |
8044 | barf--don't ignore it. | |
df0f2ba1 | 8045 | (To ignore it safely, we would need to gcpro a bunch of |
1abe6abe RS |
8046 | other variables.) */ |
8047 | if (! (VECTORP (fkey_next) || STRINGP (fkey_next))) | |
6321824f | 8048 | error ("Function in key-translation-map returns invalid key sequence"); |
1abe6abe RS |
8049 | } |
8050 | ||
e9bf89a0 RS |
8051 | function_key_possible = ! NILP (fkey_next); |
8052 | ||
85bc5181 | 8053 | /* If keybuf[fkey_start..fkey_end] is bound in the |
a764a753 | 8054 | function key map and it's a suffix of the current |
85bc5181 | 8055 | sequence (i.e. fkey_end == t), replace it with |
a764a753 | 8056 | the binding and restart with fkey_start at the end. */ |
f5ea6163 | 8057 | if ((VECTORP (fkey_next) || STRINGP (fkey_next)) |
284f4730 JB |
8058 | && fkey_end == t) |
8059 | { | |
2e864a76 | 8060 | int len = XFASTINT (Flength (fkey_next)); |
f5ea6163 JB |
8061 | |
8062 | t = fkey_start + len; | |
284f4730 | 8063 | if (t >= bufsize) |
3fe8e9a2 | 8064 | error ("Key sequence too long"); |
284f4730 | 8065 | |
f5ea6163 JB |
8066 | if (VECTORP (fkey_next)) |
8067 | bcopy (XVECTOR (fkey_next)->contents, | |
8068 | keybuf + fkey_start, | |
8069 | (t - fkey_start) * sizeof (keybuf[0])); | |
8070 | else if (STRINGP (fkey_next)) | |
8071 | { | |
8072 | int i; | |
8073 | ||
8074 | for (i = 0; i < len; i++) | |
bb9e9bed KH |
8075 | XSETFASTINT (keybuf[fkey_start + i], |
8076 | XSTRING (fkey_next)->data[i]); | |
f5ea6163 | 8077 | } |
df0f2ba1 | 8078 | |
284f4730 JB |
8079 | mock_input = t; |
8080 | fkey_start = fkey_end = t; | |
32e6d806 | 8081 | fkey_map = Vfunction_key_map; |
284f4730 | 8082 | |
3bd0dffb KH |
8083 | /* Do pass the results through key-translation-map. |
8084 | But don't retranslate what key-translation-map | |
8085 | has already translated. */ | |
8086 | keytran_end = keytran_start; | |
00a78037 RS |
8087 | keytran_map = Vkey_translation_map; |
8088 | ||
f4255cd1 | 8089 | goto replay_sequence; |
284f4730 | 8090 | } |
df0f2ba1 | 8091 | |
f4255cd1 | 8092 | fkey_map = get_keymap_1 (fkey_next, 0, 1); |
284f4730 | 8093 | |
df0f2ba1 | 8094 | /* If we no longer have a bound suffix, try a new positions for |
a764a753 | 8095 | fkey_start. */ |
284f4730 JB |
8096 | if (NILP (fkey_map)) |
8097 | { | |
8098 | fkey_end = ++fkey_start; | |
8099 | fkey_map = Vfunction_key_map; | |
e9bf89a0 | 8100 | function_key_possible = 0; |
284f4730 JB |
8101 | } |
8102 | } | |
8103 | } | |
a612e298 RS |
8104 | |
8105 | /* Look for this sequence in key-translation-map. */ | |
8106 | { | |
8107 | Lisp_Object keytran_next; | |
8108 | ||
8109 | /* Scan from keytran_end until we find a bound suffix. */ | |
8110 | while (keytran_end < t) | |
8111 | { | |
8112 | Lisp_Object key; | |
8113 | ||
8114 | key = keybuf[keytran_end++]; | |
8115 | /* Look up meta-characters by prefixing them | |
8116 | with meta_prefix_char. I hate this. */ | |
8c18cbfb | 8117 | if (INTEGERP (key) && XINT (key) & meta_modifier) |
a612e298 RS |
8118 | { |
8119 | keytran_next | |
8120 | = get_keymap_1 | |
8121 | (get_keyelt | |
c6a67acd | 8122 | (access_keymap (keytran_map, meta_prefix_char, 1, 0), 0), |
a612e298 | 8123 | 0, 1); |
bb9e9bed | 8124 | XSETFASTINT (key, XFASTINT (key) & ~meta_modifier); |
a612e298 RS |
8125 | } |
8126 | else | |
8127 | keytran_next = keytran_map; | |
8128 | ||
8129 | keytran_next | |
e83f6bb0 | 8130 | = get_keyelt (access_keymap (keytran_next, key, 1, 0), 1); |
a612e298 | 8131 | |
c700c260 | 8132 | /* Handle symbol with autoload definition. */ |
e83f6bb0 RS |
8133 | if (SYMBOLP (keytran_next) && ! NILP (Ffboundp (keytran_next)) |
8134 | && CONSP (XSYMBOL (keytran_next)->function) | |
8135 | && EQ (XCONS (XSYMBOL (keytran_next)->function)->car, Qautoload)) | |
8136 | do_autoload (XSYMBOL (keytran_next)->function, | |
8137 | keytran_next); | |
8138 | ||
c700c260 RS |
8139 | /* Handle a symbol whose function definition is a keymap |
8140 | or an array. */ | |
e83f6bb0 | 8141 | if (SYMBOLP (keytran_next) && ! NILP (Ffboundp (keytran_next)) |
c700c260 RS |
8142 | && (!NILP (Farrayp (XSYMBOL (keytran_next)->function)) |
8143 | || !NILP (Fkeymapp (XSYMBOL (keytran_next)->function)))) | |
e83f6bb0 RS |
8144 | keytran_next = XSYMBOL (keytran_next)->function; |
8145 | ||
1abe6abe | 8146 | /* If the key translation map gives a function, not an |
e83f6bb0 | 8147 | array, then call the function with one arg and use |
1abe6abe RS |
8148 | its value instead. */ |
8149 | if (SYMBOLP (keytran_next) && ! NILP (Ffboundp (keytran_next)) | |
8150 | && keytran_end == t) | |
8151 | { | |
8152 | struct gcpro gcpro1, gcpro2, gcpro3; | |
8153 | Lisp_Object tem; | |
8154 | tem = keytran_next; | |
8155 | ||
40932d1a | 8156 | GCPRO3 (fkey_map, keytran_map, delayed_switch_frame); |
84d91fda | 8157 | keytran_next = call1 (keytran_next, prompt); |
1abe6abe RS |
8158 | UNGCPRO; |
8159 | /* If the function returned something invalid, | |
8160 | barf--don't ignore it. | |
df0f2ba1 | 8161 | (To ignore it safely, we would need to gcpro a bunch of |
1abe6abe RS |
8162 | other variables.) */ |
8163 | if (! (VECTORP (keytran_next) || STRINGP (keytran_next))) | |
40932d1a | 8164 | error ("Function in key-translation-map returns invalid key sequence"); |
1abe6abe RS |
8165 | } |
8166 | ||
00a78037 RS |
8167 | key_translation_possible = ! NILP (keytran_next); |
8168 | ||
a612e298 | 8169 | /* If keybuf[keytran_start..keytran_end] is bound in the |
1abe6abe | 8170 | key translation map and it's a suffix of the current |
a612e298 RS |
8171 | sequence (i.e. keytran_end == t), replace it with |
8172 | the binding and restart with keytran_start at the end. */ | |
8173 | if ((VECTORP (keytran_next) || STRINGP (keytran_next)) | |
8174 | && keytran_end == t) | |
8175 | { | |
2e864a76 | 8176 | int len = XFASTINT (Flength (keytran_next)); |
a612e298 RS |
8177 | |
8178 | t = keytran_start + len; | |
8179 | if (t >= bufsize) | |
3fe8e9a2 | 8180 | error ("Key sequence too long"); |
a612e298 RS |
8181 | |
8182 | if (VECTORP (keytran_next)) | |
8183 | bcopy (XVECTOR (keytran_next)->contents, | |
8184 | keybuf + keytran_start, | |
8185 | (t - keytran_start) * sizeof (keybuf[0])); | |
8186 | else if (STRINGP (keytran_next)) | |
8187 | { | |
8188 | int i; | |
8189 | ||
8190 | for (i = 0; i < len; i++) | |
bb9e9bed KH |
8191 | XSETFASTINT (keybuf[keytran_start + i], |
8192 | XSTRING (keytran_next)->data[i]); | |
a612e298 RS |
8193 | } |
8194 | ||
8195 | mock_input = t; | |
8196 | keytran_start = keytran_end = t; | |
8197 | keytran_map = Vkey_translation_map; | |
8198 | ||
00a78037 RS |
8199 | /* Don't pass the results of key-translation-map |
8200 | through function-key-map. */ | |
8201 | fkey_start = fkey_end = t; | |
3bd0dffb | 8202 | fkey_map = Vfunction_key_map; |
00a78037 | 8203 | |
a612e298 RS |
8204 | goto replay_sequence; |
8205 | } | |
8206 | ||
8207 | keytran_map = get_keymap_1 (keytran_next, 0, 1); | |
8208 | ||
df0f2ba1 | 8209 | /* If we no longer have a bound suffix, try a new positions for |
a612e298 RS |
8210 | keytran_start. */ |
8211 | if (NILP (keytran_map)) | |
8212 | { | |
8213 | keytran_end = ++keytran_start; | |
8214 | keytran_map = Vkey_translation_map; | |
00a78037 | 8215 | key_translation_possible = 0; |
a612e298 RS |
8216 | } |
8217 | } | |
8218 | } | |
4e50f26a RS |
8219 | |
8220 | /* If KEY is not defined in any of the keymaps, | |
8221 | and cannot be part of a function key or translation, | |
8222 | and is an upper case letter | |
8223 | use the corresponding lower-case letter instead. */ | |
8224 | if (first_binding == nmaps && ! function_key_possible | |
00a78037 | 8225 | && ! key_translation_possible |
8c18cbfb | 8226 | && INTEGERP (key) |
4e50f26a | 8227 | && ((((XINT (key) & 0x3ffff) |
301738ed | 8228 | < XCHAR_TABLE (current_buffer->downcase_table)->size) |
4e50f26a RS |
8229 | && UPPERCASEP (XINT (key) & 0x3ffff)) |
8230 | || (XINT (key) & shift_modifier))) | |
8231 | { | |
569871d2 | 8232 | Lisp_Object new_key; |
569871d2 | 8233 | |
309b0fc8 RS |
8234 | original_uppercase = key; |
8235 | original_uppercase_position = t - 1; | |
8236 | ||
831f35a2 | 8237 | if (XINT (key) & shift_modifier) |
569871d2 | 8238 | XSETINT (new_key, XINT (key) & ~shift_modifier); |
4e50f26a | 8239 | else |
569871d2 RS |
8240 | XSETINT (new_key, (DOWNCASE (XINT (key) & 0x3ffff) |
8241 | | (XINT (key) & ~0x3ffff))); | |
8242 | ||
3fe8e9a2 RS |
8243 | /* We have to do this unconditionally, regardless of whether |
8244 | the lower-case char is defined in the keymaps, because they | |
8245 | might get translated through function-key-map. */ | |
8246 | keybuf[t - 1] = new_key; | |
8247 | mock_input = t; | |
8248 | ||
8249 | fkey_map = prev_fkey_map; | |
8250 | fkey_start = prev_fkey_start; | |
8251 | fkey_end = prev_fkey_end; | |
8252 | ||
8253 | keytran_map = prev_keytran_map; | |
8254 | keytran_start = prev_keytran_start; | |
8255 | keytran_end = prev_keytran_end; | |
8256 | ||
8257 | goto replay_sequence; | |
4e50f26a | 8258 | } |
ef8fd672 RS |
8259 | /* If KEY is not defined in any of the keymaps, |
8260 | and cannot be part of a function key or translation, | |
8261 | and is a shifted function key, | |
8262 | use the corresponding unshifted function key instead. */ | |
8263 | if (first_binding == nmaps && ! function_key_possible | |
8264 | && ! key_translation_possible | |
8265 | && SYMBOLP (key)) | |
8266 | { | |
8267 | Lisp_Object breakdown; | |
8268 | int modifiers; | |
8269 | ||
8270 | breakdown = parse_modifiers (key); | |
8271 | modifiers = XINT (XCONS (XCONS (breakdown)->cdr)->car); | |
8272 | if (modifiers & shift_modifier) | |
8273 | { | |
569871d2 | 8274 | Lisp_Object new_key; |
3fe8e9a2 RS |
8275 | |
8276 | original_uppercase = key; | |
8277 | original_uppercase_position = t - 1; | |
ef8fd672 | 8278 | |
569871d2 RS |
8279 | modifiers &= ~shift_modifier; |
8280 | new_key = apply_modifiers (modifiers, | |
8281 | XCONS (breakdown)->car); | |
8282 | ||
3fe8e9a2 RS |
8283 | keybuf[t - 1] = new_key; |
8284 | mock_input = t; | |
8285 | ||
8286 | fkey_map = prev_fkey_map; | |
8287 | fkey_start = prev_fkey_start; | |
8288 | fkey_end = prev_fkey_end; | |
8289 | ||
8290 | keytran_map = prev_keytran_map; | |
8291 | keytran_start = prev_keytran_start; | |
8292 | keytran_end = prev_keytran_end; | |
8293 | ||
8294 | goto replay_sequence; | |
ef8fd672 RS |
8295 | } |
8296 | } | |
284f4730 JB |
8297 | } |
8298 | ||
309b0fc8 | 8299 | if (!dummyflag) |
bc536d84 RS |
8300 | read_key_sequence_cmd = (first_binding < nmaps |
8301 | ? defs[first_binding] | |
8302 | : Qnil); | |
284f4730 | 8303 | |
cd21b839 | 8304 | unread_switch_frame = delayed_switch_frame; |
f4255cd1 | 8305 | unbind_to (count, Qnil); |
07f76a14 | 8306 | |
3fe8e9a2 RS |
8307 | /* Don't downcase the last character if the caller says don't. |
8308 | Don't downcase it if the result is undefined, either. */ | |
8309 | if ((dont_downcase_last || first_binding >= nmaps) | |
8310 | && t - 1 == original_uppercase_position) | |
309b0fc8 RS |
8311 | keybuf[t - 1] = original_uppercase; |
8312 | ||
07f76a14 JB |
8313 | /* Occasionally we fabricate events, perhaps by expanding something |
8314 | according to function-key-map, or by adding a prefix symbol to a | |
8315 | mouse click in the scroll bar or modeline. In this cases, return | |
8316 | the entire generated key sequence, even if we hit an unbound | |
8317 | prefix or a definition before the end. This means that you will | |
8318 | be able to push back the event properly, and also means that | |
8319 | read-key-sequence will always return a logical unit. | |
8320 | ||
8321 | Better ideas? */ | |
cca310da JB |
8322 | for (; t < mock_input; t++) |
8323 | { | |
a98ea3f9 RS |
8324 | if (echo_keystrokes) |
8325 | echo_char (keybuf[t]); | |
cca310da JB |
8326 | add_command_key (keybuf[t]); |
8327 | } | |
07f76a14 | 8328 | |
7d18f9ae RS |
8329 | |
8330 | ||
284f4730 JB |
8331 | return t; |
8332 | } | |
8333 | ||
a612e298 RS |
8334 | #if 0 /* This doc string is too long for some compilers. |
8335 | This commented-out definition serves for DOC. */ | |
ce98e608 | 8336 | DEFUN ("read-key-sequence", Fread_key_sequence, Sread_key_sequence, 1, 4, 0, |
284f4730 JB |
8337 | "Read a sequence of keystrokes and return as a string or vector.\n\ |
8338 | The sequence is sufficient to specify a non-prefix command in the\n\ | |
8339 | current local and global maps.\n\ | |
8340 | \n\ | |
c0a58692 RS |
8341 | First arg PROMPT is a prompt string. If nil, do not prompt specially.\n\ |
8342 | Second (optional) arg CONTINUE-ECHO, if non-nil, means this key echos\n\ | |
8343 | as a continuation of the previous key.\n\ | |
284f4730 | 8344 | \n\ |
309b0fc8 RS |
8345 | The third (optional) arg DONT-DOWNCASE-LAST, if non-nil, means do not\n\ |
8346 | convert the last event to lower case. (Normally any upper case event\n\ | |
8347 | is converted to lower case if the original event is undefined and the lower\n\ | |
8348 | case equivalent is defined.) A non-nil value is appropriate for reading\n\ | |
8349 | a key sequence to be defined.\n\ | |
8350 | \n\ | |
cb5df6ae JB |
8351 | A C-g typed while in this function is treated like any other character,\n\ |
8352 | and `quit-flag' is not set.\n\ | |
8353 | \n\ | |
8354 | If the key sequence starts with a mouse click, then the sequence is read\n\ | |
8355 | using the keymaps of the buffer of the window clicked in, not the buffer\n\ | |
8356 | of the selected window as normal.\n\ | |
ede41463 | 8357 | ""\n\ |
cb5df6ae JB |
8358 | `read-key-sequence' drops unbound button-down events, since you normally\n\ |
8359 | only care about the click or drag events which follow them. If a drag\n\ | |
fbcd35bd JB |
8360 | or multi-click event is unbound, but the corresponding click event would\n\ |
8361 | be bound, `read-key-sequence' turns the event into a click event at the\n\ | |
cb5df6ae | 8362 | drag's starting position. This means that you don't have to distinguish\n\ |
fbcd35bd | 8363 | between click and drag, double, or triple events unless you want to.\n\ |
cb5df6ae JB |
8364 | \n\ |
8365 | `read-key-sequence' prefixes mouse events on mode lines, the vertical\n\ | |
3c370943 JB |
8366 | lines separating windows, and scroll bars with imaginary keys\n\ |
8367 | `mode-line', `vertical-line', and `vertical-scroll-bar'.\n\ | |
cb5df6ae | 8368 | \n\ |
ce98e608 KH |
8369 | Optional fourth argument CAN-RETURN-SWITCH-FRAME non-nil means that this\n\ |
8370 | function will process a switch-frame event if the user switches frames\n\ | |
8371 | before typing anything. If the user switches frames in the middle of a\n\ | |
8372 | key sequence, or at the start of the sequence but CAN-RETURN-SWITCH-FRAME\n\ | |
8373 | is nil, then the event will be put off until after the current key sequence.\n\ | |
cb5df6ae JB |
8374 | \n\ |
8375 | `read-key-sequence' checks `function-key-map' for function key\n\ | |
8376 | sequences, where they wouldn't conflict with ordinary bindings. See\n\ | |
d5eecefb RS |
8377 | `function-key-map' for more details.\n\ |
8378 | \n\ | |
8379 | The optional fifth argument COMMAND-LOOP, if non-nil, means\n\ | |
8380 | that this key sequence is being read by something that will\n\ | |
8381 | read commands one after another. It should be nil if the caller\n\ | |
8382 | will read just one key sequence.") | |
b638f328 | 8383 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, command-loop) |
a612e298 RS |
8384 | #endif |
8385 | ||
d5eecefb | 8386 | DEFUN ("read-key-sequence", Fread_key_sequence, Sread_key_sequence, 1, 5, 0, |
a612e298 | 8387 | 0) |
d5eecefb RS |
8388 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, |
8389 | command_loop) | |
309b0fc8 | 8390 | Lisp_Object prompt, continue_echo, dont_downcase_last; |
d5eecefb | 8391 | Lisp_Object can_return_switch_frame, command_loop; |
284f4730 JB |
8392 | { |
8393 | Lisp_Object keybuf[30]; | |
8394 | register int i; | |
8395 | struct gcpro gcpro1, gcpro2; | |
d5eecefb | 8396 | int count = specpdl_ptr - specpdl; |
284f4730 JB |
8397 | |
8398 | if (!NILP (prompt)) | |
8399 | CHECK_STRING (prompt, 0); | |
8400 | QUIT; | |
8401 | ||
d5eecefb RS |
8402 | specbind (Qinput_method_exit_on_first_char, |
8403 | (NILP (command_loop) ? Qt : Qnil)); | |
8404 | specbind (Qinput_method_use_echo_area, | |
8405 | (NILP (command_loop) ? Qt : Qnil)); | |
8406 | ||
284f4730 JB |
8407 | bzero (keybuf, sizeof keybuf); |
8408 | GCPRO1 (keybuf[0]); | |
8409 | gcpro1.nvars = (sizeof keybuf/sizeof (keybuf[0])); | |
8410 | ||
daa37602 | 8411 | if (NILP (continue_echo)) |
6321824f RS |
8412 | { |
8413 | this_command_key_count = 0; | |
8414 | this_single_command_key_start = 0; | |
8415 | } | |
c0a58692 | 8416 | |
309b0fc8 | 8417 | i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])), |
ce98e608 | 8418 | prompt, ! NILP (dont_downcase_last), |
f571ae0d | 8419 | ! NILP (can_return_switch_frame), 0); |
284f4730 | 8420 | |
dcc408a0 RS |
8421 | if (i == -1) |
8422 | { | |
8423 | Vquit_flag = Qt; | |
8424 | QUIT; | |
8425 | } | |
284f4730 | 8426 | UNGCPRO; |
d5eecefb | 8427 | return unbind_to (count, make_event_array (i, keybuf)); |
284f4730 | 8428 | } |
e39da3d7 RS |
8429 | |
8430 | DEFUN ("read-key-sequence-vector", Fread_key_sequence_vector, | |
d5eecefb | 8431 | Sread_key_sequence_vector, 1, 5, 0, |
e39da3d7 | 8432 | "Like `read-key-sequence' but always return a vector.") |
d5eecefb RS |
8433 | (prompt, continue_echo, dont_downcase_last, can_return_switch_frame, |
8434 | command_loop) | |
e39da3d7 | 8435 | Lisp_Object prompt, continue_echo, dont_downcase_last; |
d5eecefb | 8436 | Lisp_Object can_return_switch_frame, command_loop; |
e39da3d7 RS |
8437 | { |
8438 | Lisp_Object keybuf[30]; | |
8439 | register int i; | |
8440 | struct gcpro gcpro1, gcpro2; | |
d5eecefb | 8441 | int count = specpdl_ptr - specpdl; |
e39da3d7 RS |
8442 | |
8443 | if (!NILP (prompt)) | |
8444 | CHECK_STRING (prompt, 0); | |
8445 | QUIT; | |
8446 | ||
d5eecefb RS |
8447 | specbind (Qinput_method_exit_on_first_char, |
8448 | (NILP (command_loop) ? Qt : Qnil)); | |
8449 | specbind (Qinput_method_use_echo_area, | |
8450 | (NILP (command_loop) ? Qt : Qnil)); | |
8451 | ||
e39da3d7 RS |
8452 | bzero (keybuf, sizeof keybuf); |
8453 | GCPRO1 (keybuf[0]); | |
8454 | gcpro1.nvars = (sizeof keybuf/sizeof (keybuf[0])); | |
8455 | ||
8456 | if (NILP (continue_echo)) | |
8457 | { | |
8458 | this_command_key_count = 0; | |
8459 | this_single_command_key_start = 0; | |
8460 | } | |
8461 | ||
8462 | i = read_key_sequence (keybuf, (sizeof keybuf/sizeof (keybuf[0])), | |
8463 | prompt, ! NILP (dont_downcase_last), | |
8464 | ! NILP (can_return_switch_frame), 0); | |
8465 | ||
8466 | if (i == -1) | |
8467 | { | |
8468 | Vquit_flag = Qt; | |
8469 | QUIT; | |
8470 | } | |
8471 | UNGCPRO; | |
d5eecefb | 8472 | return unbind_to (count, Fvector (i, keybuf)); |
e39da3d7 | 8473 | } |
284f4730 | 8474 | \f |
158f7532 | 8475 | DEFUN ("command-execute", Fcommand_execute, Scommand_execute, 1, 4, 0, |
284f4730 JB |
8476 | "Execute CMD as an editor command.\n\ |
8477 | CMD must be a symbol that satisfies the `commandp' predicate.\n\ | |
8478 | Optional second arg RECORD-FLAG non-nil\n\ | |
8479 | means unconditionally put this command in `command-history'.\n\ | |
aaf2ead7 RS |
8480 | Otherwise, that is done only if an arg is read using the minibuffer.\n\ |
8481 | The argument KEYS specifies the value to use instead of (this-command-keys)\n\ | |
6321824f | 8482 | when reading the arguments; if it is nil, (this-command-keys) is used.\n\ |
158f7532 RS |
8483 | The argument SPECIAL, if non-nil, means that this command is executing\n\ |
8484 | a special event, so ignore the prefix argument and don't clear it.") | |
8485 | (cmd, record_flag, keys, special) | |
8486 | Lisp_Object cmd, record_flag, keys, special; | |
284f4730 JB |
8487 | { |
8488 | register Lisp_Object final; | |
8489 | register Lisp_Object tem; | |
8490 | Lisp_Object prefixarg; | |
8491 | struct backtrace backtrace; | |
8492 | extern int debug_on_next_call; | |
8493 | ||
284f4730 JB |
8494 | debug_on_next_call = 0; |
8495 | ||
158f7532 RS |
8496 | if (NILP (special)) |
8497 | { | |
8498 | prefixarg = current_kboard->Vprefix_arg; | |
8499 | Vcurrent_prefix_arg = prefixarg; | |
8500 | current_kboard->Vprefix_arg = Qnil; | |
8501 | } | |
8502 | else | |
8503 | prefixarg = Qnil; | |
8504 | ||
8c18cbfb | 8505 | if (SYMBOLP (cmd)) |
284f4730 JB |
8506 | { |
8507 | tem = Fget (cmd, Qdisabled); | |
88ce066e | 8508 | if (!NILP (tem) && !NILP (Vrun_hooks)) |
b78ce8fb RS |
8509 | { |
8510 | tem = Fsymbol_value (Qdisabled_command_hook); | |
8511 | if (!NILP (tem)) | |
8512 | return call1 (Vrun_hooks, Qdisabled_command_hook); | |
8513 | } | |
284f4730 JB |
8514 | } |
8515 | ||
01e26217 | 8516 | while (1) |
284f4730 | 8517 | { |
ffd56f97 | 8518 | final = Findirect_function (cmd); |
284f4730 JB |
8519 | |
8520 | if (CONSP (final) && (tem = Fcar (final), EQ (tem, Qautoload))) | |
b516a185 RS |
8521 | { |
8522 | struct gcpro gcpro1, gcpro2; | |
8523 | ||
8524 | GCPRO2 (cmd, prefixarg); | |
8525 | do_autoload (final, cmd); | |
8526 | UNGCPRO; | |
8527 | } | |
284f4730 JB |
8528 | else |
8529 | break; | |
8530 | } | |
8531 | ||
8c18cbfb | 8532 | if (STRINGP (final) || VECTORP (final)) |
284f4730 JB |
8533 | { |
8534 | /* If requested, place the macro in the command history. For | |
8535 | other sorts of commands, call-interactively takes care of | |
8536 | this. */ | |
e57d8fd8 | 8537 | if (!NILP (record_flag)) |
f4385381 RS |
8538 | { |
8539 | Vcommand_history | |
8540 | = Fcons (Fcons (Qexecute_kbd_macro, | |
8541 | Fcons (final, Fcons (prefixarg, Qnil))), | |
8542 | Vcommand_history); | |
8543 | ||
8544 | /* Don't keep command history around forever. */ | |
8545 | if (NUMBERP (Vhistory_length) && XINT (Vhistory_length) > 0) | |
8546 | { | |
8547 | tem = Fnthcdr (Vhistory_length, Vcommand_history); | |
8548 | if (CONSP (tem)) | |
8549 | XCONS (tem)->cdr = Qnil; | |
8550 | } | |
8551 | } | |
284f4730 JB |
8552 | |
8553 | return Fexecute_kbd_macro (final, prefixarg); | |
8554 | } | |
f4385381 | 8555 | |
8c18cbfb | 8556 | if (CONSP (final) || SUBRP (final) || COMPILEDP (final)) |
284f4730 JB |
8557 | { |
8558 | backtrace.next = backtrace_list; | |
8559 | backtrace_list = &backtrace; | |
8560 | backtrace.function = &Qcall_interactively; | |
8561 | backtrace.args = &cmd; | |
8562 | backtrace.nargs = 1; | |
8563 | backtrace.evalargs = 0; | |
8564 | ||
e57d8fd8 | 8565 | tem = Fcall_interactively (cmd, record_flag, keys); |
284f4730 JB |
8566 | |
8567 | backtrace_list = backtrace.next; | |
8568 | return tem; | |
8569 | } | |
8570 | return Qnil; | |
8571 | } | |
8572 | \f | |
284f4730 JB |
8573 | DEFUN ("execute-extended-command", Fexecute_extended_command, Sexecute_extended_command, |
8574 | 1, 1, "P", | |
8575 | "Read function name, then read its arguments and call it.") | |
8576 | (prefixarg) | |
8577 | Lisp_Object prefixarg; | |
8578 | { | |
8579 | Lisp_Object function; | |
8580 | char buf[40]; | |
8581 | Lisp_Object saved_keys; | |
5434fce6 | 8582 | Lisp_Object bindings, value; |
214360e9 | 8583 | struct gcpro gcpro1, gcpro2; |
284f4730 | 8584 | |
b0f2a7bf KH |
8585 | saved_keys = Fvector (this_command_key_count, |
8586 | XVECTOR (this_command_keys)->contents); | |
284f4730 | 8587 | buf[0] = 0; |
fde7aff8 | 8588 | GCPRO2 (saved_keys, prefixarg); |
284f4730 JB |
8589 | |
8590 | if (EQ (prefixarg, Qminus)) | |
8591 | strcpy (buf, "- "); | |
8592 | else if (CONSP (prefixarg) && XINT (XCONS (prefixarg)->car) == 4) | |
8593 | strcpy (buf, "C-u "); | |
8c18cbfb | 8594 | else if (CONSP (prefixarg) && INTEGERP (XCONS (prefixarg)->car)) |
5d5b907f RS |
8595 | { |
8596 | if (sizeof (int) == sizeof (EMACS_INT)) | |
8597 | sprintf (buf, "%d ", XINT (XCONS (prefixarg)->car)); | |
8598 | else if (sizeof (long) == sizeof (EMACS_INT)) | |
8599 | sprintf (buf, "%ld ", XINT (XCONS (prefixarg)->car)); | |
8600 | else | |
8601 | abort (); | |
8602 | } | |
8c18cbfb | 8603 | else if (INTEGERP (prefixarg)) |
5d5b907f RS |
8604 | { |
8605 | if (sizeof (int) == sizeof (EMACS_INT)) | |
8606 | sprintf (buf, "%d ", XINT (prefixarg)); | |
8607 | else if (sizeof (long) == sizeof (EMACS_INT)) | |
8608 | sprintf (buf, "%ld ", XINT (prefixarg)); | |
8609 | else | |
8610 | abort (); | |
8611 | } | |
284f4730 JB |
8612 | |
8613 | /* This isn't strictly correct if execute-extended-command | |
8614 | is bound to anything else. Perhaps it should use | |
8615 | this_command_keys? */ | |
8616 | strcat (buf, "M-x "); | |
8617 | ||
8618 | /* Prompt with buf, and then read a string, completing from and | |
8619 | restricting to the set of all defined commands. Don't provide | |
51763820 | 8620 | any initial input. Save the command read on the extended-command |
03b4122a | 8621 | history list. */ |
284f4730 JB |
8622 | function = Fcompleting_read (build_string (buf), |
8623 | Vobarray, Qcommandp, | |
4328577a KH |
8624 | Qt, Qnil, Qextended_command_history, Qnil, |
8625 | Qnil); | |
284f4730 | 8626 | |
1f5b1641 RS |
8627 | if (STRINGP (function) && XSTRING (function)->size == 0) |
8628 | error ("No command name given"); | |
8629 | ||
1113d9db JB |
8630 | /* Set this_command_keys to the concatenation of saved_keys and |
8631 | function, followed by a RET. */ | |
284f4730 | 8632 | { |
1113d9db | 8633 | struct Lisp_String *str; |
b0f2a7bf | 8634 | Lisp_Object *keys; |
284f4730 | 8635 | int i; |
284f4730 | 8636 | |
1113d9db | 8637 | this_command_key_count = 0; |
6321824f | 8638 | this_single_command_key_start = 0; |
1113d9db | 8639 | |
b0f2a7bf KH |
8640 | keys = XVECTOR (saved_keys)->contents; |
8641 | for (i = 0; i < XVECTOR (saved_keys)->size; i++) | |
8642 | add_command_key (keys[i]); | |
1113d9db JB |
8643 | |
8644 | str = XSTRING (function); | |
8645 | for (i = 0; i < str->size; i++) | |
301738ed | 8646 | add_command_key (Faref (function, make_number (i))); |
1113d9db | 8647 | |
301738ed | 8648 | add_command_key (make_number ('\015')); |
284f4730 JB |
8649 | } |
8650 | ||
8651 | UNGCPRO; | |
8652 | ||
0a7f1fc0 | 8653 | function = Fintern (function, Qnil); |
d8bcf58e | 8654 | current_kboard->Vprefix_arg = prefixarg; |
d5eecefb RS |
8655 | Vthis_command = function; |
8656 | real_this_command = function; | |
284f4730 | 8657 | |
6526ab49 RS |
8658 | /* If enabled, show which key runs this command. */ |
8659 | if (!NILP (Vsuggest_key_bindings) | |
71012575 | 8660 | && NILP (Vexecuting_macro) |
6526ab49 | 8661 | && SYMBOLP (function)) |
5434fce6 RS |
8662 | bindings = Fwhere_is_internal (function, Voverriding_local_map, |
8663 | Qt, Qnil); | |
8664 | else | |
8665 | bindings = Qnil; | |
6526ab49 | 8666 | |
5434fce6 RS |
8667 | value = Qnil; |
8668 | GCPRO2 (bindings, value); | |
8669 | value = Fcommand_execute (function, Qt, Qnil, Qnil); | |
6526ab49 | 8670 | |
5434fce6 | 8671 | /* If the command has a key binding, print it now. */ |
3ababa60 | 8672 | if (!NILP (bindings) |
ee112567 KH |
8673 | && ! (VECTORP (bindings) && EQ (Faref (bindings, make_number (0)), |
8674 | Qmouse_movement))) | |
5434fce6 RS |
8675 | { |
8676 | /* But first wait, and skip the message if there is input. */ | |
426939cc | 8677 | int delay_time; |
985f9f66 | 8678 | if (!NILP (echo_area_buffer[0])) |
426939cc RS |
8679 | /* This command displayed something in the echo area; |
8680 | so wait a few seconds, then display our suggestion message. */ | |
8681 | delay_time = (NUMBERP (Vsuggest_key_bindings) | |
8682 | ? XINT (Vsuggest_key_bindings) : 2); | |
8683 | else | |
8684 | /* This command left the echo area empty, | |
8685 | so display our message immediately. */ | |
8686 | delay_time = 0; | |
8687 | ||
8688 | if (!NILP (Fsit_for (make_number (delay_time), Qnil, Qnil)) | |
303b5b3f | 8689 | && ! CONSP (Vunread_command_events)) |
6526ab49 | 8690 | { |
5434fce6 RS |
8691 | Lisp_Object binding; |
8692 | char *newmessage; | |
985f9f66 | 8693 | int message_p = push_message (); |
5434fce6 RS |
8694 | |
8695 | binding = Fkey_description (bindings); | |
8696 | ||
8697 | newmessage | |
8698 | = (char *) alloca (XSYMBOL (function)->name->size | |
fc932ac6 | 8699 | + STRING_BYTES (XSTRING (binding)) |
5434fce6 | 8700 | + 100); |
3ababa60 | 8701 | sprintf (newmessage, "You can run the command `%s' with %s", |
6526ab49 | 8702 | XSYMBOL (function)->name->data, |
5434fce6 | 8703 | XSTRING (binding)->data); |
301738ed RS |
8704 | message2_nolog (newmessage, |
8705 | strlen (newmessage), | |
8706 | STRING_MULTIBYTE (binding)); | |
5434fce6 RS |
8707 | if (!NILP (Fsit_for ((NUMBERP (Vsuggest_key_bindings) |
8708 | ? Vsuggest_key_bindings : make_number (2)), | |
985f9f66 GM |
8709 | Qnil, Qnil)) |
8710 | && message_p) | |
8711 | restore_message (); | |
8712 | ||
8713 | pop_message (); | |
6526ab49 RS |
8714 | } |
8715 | } | |
8716 | ||
5434fce6 | 8717 | RETURN_UNGCPRO (value); |
284f4730 | 8718 | } |
6526ab49 RS |
8719 | |
8720 | /* Find the set of keymaps now active. | |
8721 | Store into *MAPS_P a vector holding the various maps | |
8722 | and return the number of them. The vector was malloc'd | |
8723 | and the caller should free it. */ | |
8724 | ||
8725 | int | |
8726 | current_active_maps (maps_p) | |
8727 | Lisp_Object **maps_p; | |
8728 | { | |
8729 | Lisp_Object *tmaps, *maps; | |
8730 | int nmaps; | |
8731 | ||
8732 | /* Should overriding-terminal-local-map and overriding-local-map apply? */ | |
8733 | if (!NILP (Voverriding_local_map_menu_flag)) | |
8734 | { | |
8735 | /* Yes, use them (if non-nil) as well as the global map. */ | |
8736 | maps = (Lisp_Object *) xmalloc (3 * sizeof (maps[0])); | |
8737 | nmaps = 0; | |
8738 | if (!NILP (current_kboard->Voverriding_terminal_local_map)) | |
8739 | maps[nmaps++] = current_kboard->Voverriding_terminal_local_map; | |
8740 | if (!NILP (Voverriding_local_map)) | |
8741 | maps[nmaps++] = Voverriding_local_map; | |
8742 | } | |
8743 | else | |
8744 | { | |
8745 | /* No, so use major and minor mode keymaps. */ | |
8746 | nmaps = current_minor_maps (NULL, &tmaps); | |
8747 | maps = (Lisp_Object *) xmalloc ((nmaps + 2) * sizeof (maps[0])); | |
8748 | bcopy (tmaps, maps, nmaps * sizeof (maps[0])); | |
8749 | #ifdef USE_TEXT_PROPERTIES | |
8750 | maps[nmaps++] = get_local_map (PT, current_buffer); | |
8751 | #else | |
8752 | maps[nmaps++] = current_buffer->keymap; | |
8753 | #endif | |
8754 | } | |
8755 | maps[nmaps++] = current_global_map; | |
8756 | ||
8757 | *maps_p = maps; | |
8758 | return nmaps; | |
8759 | } | |
284f4730 | 8760 | \f |
d9d4c147 | 8761 | /* Return nonzero if input events are pending. */ |
284f4730 | 8762 | |
dfcf069d | 8763 | int |
284f4730 JB |
8764 | detect_input_pending () |
8765 | { | |
8766 | if (!input_pending) | |
d9d4c147 KH |
8767 | get_input_pending (&input_pending, 0); |
8768 | ||
8769 | return input_pending; | |
8770 | } | |
8771 | ||
b1878f45 | 8772 | /* Return nonzero if input events are pending, and run any pending timers. */ |
d9d4c147 | 8773 | |
dfcf069d | 8774 | int |
87dd9b9b RS |
8775 | detect_input_pending_run_timers (do_display) |
8776 | int do_display; | |
d9d4c147 | 8777 | { |
87dd9b9b RS |
8778 | int old_timers_run = timers_run; |
8779 | ||
d9d4c147 KH |
8780 | if (!input_pending) |
8781 | get_input_pending (&input_pending, 1); | |
284f4730 | 8782 | |
87dd9b9b | 8783 | if (old_timers_run != timers_run && do_display) |
7ee32cda GM |
8784 | { |
8785 | redisplay_preserve_echo_area (); | |
8786 | /* The following fixes a bug when using lazy-lock with | |
8787 | lazy-lock-defer-on-the-fly set to t, i.e. when fontifying | |
8788 | from an idle timer function. The symptom of the bug is that | |
8789 | the cursor sometimes doesn't become visible until the next X | |
8790 | event is processed. --gerd. */ | |
8791 | if (rif) | |
8792 | rif->flush_display (NULL); | |
8793 | } | |
87dd9b9b | 8794 | |
284f4730 JB |
8795 | return input_pending; |
8796 | } | |
8797 | ||
ffd56f97 JB |
8798 | /* This is called in some cases before a possible quit. |
8799 | It cases the next call to detect_input_pending to recompute input_pending. | |
8800 | So calling this function unnecessarily can't do any harm. */ | |
07a59269 KH |
8801 | |
8802 | void | |
ffd56f97 JB |
8803 | clear_input_pending () |
8804 | { | |
8805 | input_pending = 0; | |
8806 | } | |
8807 | ||
b1878f45 RS |
8808 | /* Return nonzero if there are pending requeued events. |
8809 | This isn't used yet. The hope is to make wait_reading_process_input | |
8810 | call it, and return return if it runs Lisp code that unreads something. | |
8811 | The problem is, kbd_buffer_get_event needs to be fixed to know what | |
8812 | to do in that case. It isn't trivial. */ | |
8813 | ||
dfcf069d | 8814 | int |
b1878f45 RS |
8815 | requeued_events_pending_p () |
8816 | { | |
8817 | return (!NILP (Vunread_command_events) || unread_command_char != -1); | |
8818 | } | |
8819 | ||
8820 | ||
284f4730 JB |
8821 | DEFUN ("input-pending-p", Finput_pending_p, Sinput_pending_p, 0, 0, 0, |
8822 | "T if command input is currently available with no waiting.\n\ | |
8823 | Actually, the value is nil only if we can be sure that no input is available.") | |
8824 | () | |
8825 | { | |
24597608 | 8826 | if (!NILP (Vunread_command_events) || unread_command_char != -1) |
284f4730 JB |
8827 | return (Qt); |
8828 | ||
d9d4c147 KH |
8829 | get_input_pending (&input_pending, 1); |
8830 | return input_pending > 0 ? Qt : Qnil; | |
284f4730 JB |
8831 | } |
8832 | ||
8833 | DEFUN ("recent-keys", Frecent_keys, Srecent_keys, 0, 0, 0, | |
22d7cb89 | 8834 | "Return vector of last 100 events, not counting those from keyboard macros.") |
284f4730 JB |
8835 | () |
8836 | { | |
5160df46 | 8837 | Lisp_Object *keys = XVECTOR (recent_keys)->contents; |
284f4730 JB |
8838 | Lisp_Object val; |
8839 | ||
8840 | if (total_keys < NUM_RECENT_KEYS) | |
5160df46 | 8841 | return Fvector (total_keys, keys); |
284f4730 JB |
8842 | else |
8843 | { | |
5160df46 JB |
8844 | val = Fvector (NUM_RECENT_KEYS, keys); |
8845 | bcopy (keys + recent_keys_index, | |
284f4730 JB |
8846 | XVECTOR (val)->contents, |
8847 | (NUM_RECENT_KEYS - recent_keys_index) * sizeof (Lisp_Object)); | |
5160df46 | 8848 | bcopy (keys, |
284f4730 JB |
8849 | XVECTOR (val)->contents + NUM_RECENT_KEYS - recent_keys_index, |
8850 | recent_keys_index * sizeof (Lisp_Object)); | |
8851 | return val; | |
8852 | } | |
8853 | } | |
8854 | ||
8855 | DEFUN ("this-command-keys", Fthis_command_keys, Sthis_command_keys, 0, 0, 0, | |
e5f920d7 RS |
8856 | "Return the key sequence that invoked this command.\n\ |
8857 | The value is a string or a vector.") | |
284f4730 JB |
8858 | () |
8859 | { | |
86e5706b RS |
8860 | return make_event_array (this_command_key_count, |
8861 | XVECTOR (this_command_keys)->contents); | |
284f4730 JB |
8862 | } |
8863 | ||
e39da3d7 RS |
8864 | DEFUN ("this-command-keys-vector", Fthis_command_keys_vector, Sthis_command_keys_vector, 0, 0, 0, |
8865 | "Return the key sequence that invoked this command, as a vector.") | |
8866 | () | |
8867 | { | |
8868 | return Fvector (this_command_key_count, | |
8869 | XVECTOR (this_command_keys)->contents); | |
8870 | } | |
8871 | ||
6321824f RS |
8872 | DEFUN ("this-single-command-keys", Fthis_single_command_keys, |
8873 | Sthis_single_command_keys, 0, 0, 0, | |
8874 | "Return the key sequence that invoked this command.\n\ | |
8875 | Unlike `this-command-keys', this function's value\n\ | |
8876 | does not include prefix arguments.\n\ | |
e39da3d7 | 8877 | The value is always a vector.") |
6321824f RS |
8878 | () |
8879 | { | |
e39da3d7 RS |
8880 | return Fvector (this_command_key_count |
8881 | - this_single_command_key_start, | |
8882 | (XVECTOR (this_command_keys)->contents | |
8883 | + this_single_command_key_start)); | |
6321824f RS |
8884 | } |
8885 | ||
7d18f9ae RS |
8886 | DEFUN ("this-single-command-raw-keys", Fthis_single_command_raw_keys, |
8887 | Sthis_single_command_raw_keys, 0, 0, 0, | |
8888 | "Return the raw events that were read for this command.\n\ | |
8889 | Unlike `this-single-command-keys', this function's value\n\ | |
8890 | shows the events before all translations (except for input methods).\n\ | |
8891 | The value is always a vector.") | |
8892 | () | |
8893 | { | |
8894 | return Fvector (raw_keybuf_count, | |
8895 | (XVECTOR (raw_keybuf)->contents)); | |
8896 | } | |
8897 | ||
71918b75 RS |
8898 | DEFUN ("reset-this-command-lengths", Freset_this_command_lengths, |
8899 | Sreset_this_command_lengths, 0, 0, 0, | |
8900 | "Used for complicated reasons in `universal-argument-other-key'.\n\ | |
8901 | \n\ | |
8902 | `universal-argument-other-key' rereads the event just typed.\n\ | |
8903 | It then gets translated through `function-key-map'.\n\ | |
8904 | The translated event gets included in the echo area and in\n\ | |
8905 | the value of `this-command-keys' in addition to the raw original event.\n\ | |
8906 | That is not right.\n\ | |
8907 | \n\ | |
8908 | Calling this function directs the translated event to replace\n\ | |
8909 | the original event, so that only one version of the event actually\n\ | |
8910 | appears in the echo area and in the value of `this-command-keys.'.") | |
8911 | () | |
8912 | { | |
8913 | before_command_restore_flag = 1; | |
8914 | before_command_key_count_1 = before_command_key_count; | |
8915 | before_command_echo_length_1 = before_command_echo_length; | |
6e5742a0 | 8916 | return Qnil; |
71918b75 RS |
8917 | } |
8918 | ||
82e6e5af RS |
8919 | DEFUN ("clear-this-command-keys", Fclear_this_command_keys, |
8920 | Sclear_this_command_keys, 0, 0, 0, | |
8921 | "Clear out the vector that `this-command-keys' returns.") | |
8922 | () | |
8923 | { | |
8924 | this_command_key_count = 0; | |
8925 | return Qnil; | |
8926 | } | |
8927 | ||
284f4730 JB |
8928 | DEFUN ("recursion-depth", Frecursion_depth, Srecursion_depth, 0, 0, 0, |
8929 | "Return the current depth in recursive edits.") | |
8930 | () | |
8931 | { | |
8932 | Lisp_Object temp; | |
bb9e9bed | 8933 | XSETFASTINT (temp, command_loop_level + minibuf_level); |
284f4730 JB |
8934 | return temp; |
8935 | } | |
8936 | ||
8937 | DEFUN ("open-dribble-file", Fopen_dribble_file, Sopen_dribble_file, 1, 1, | |
8938 | "FOpen dribble file: ", | |
9b2471df RS |
8939 | "Start writing all keyboard characters to a dribble file called FILE.\n\ |
8940 | If FILE is nil, close any open dribble file.") | |
284f4730 JB |
8941 | (file) |
8942 | Lisp_Object file; | |
8943 | { | |
6cb52def | 8944 | if (dribble) |
284f4730 | 8945 | { |
6cb52def KH |
8946 | fclose (dribble); |
8947 | dribble = 0; | |
284f4730 | 8948 | } |
6cb52def | 8949 | if (!NILP (file)) |
284f4730 JB |
8950 | { |
8951 | file = Fexpand_file_name (file, Qnil); | |
8952 | dribble = fopen (XSTRING (file)->data, "w"); | |
ab6ca1de KH |
8953 | if (dribble == 0) |
8954 | report_file_error ("Opening dribble", Fcons (file, Qnil)); | |
284f4730 JB |
8955 | } |
8956 | return Qnil; | |
8957 | } | |
8958 | ||
8959 | DEFUN ("discard-input", Fdiscard_input, Sdiscard_input, 0, 0, 0, | |
8960 | "Discard the contents of the terminal input buffer.\n\ | |
8961 | Also cancel any kbd macro being defined.") | |
8962 | () | |
8963 | { | |
c5fdd383 | 8964 | current_kboard->defining_kbd_macro = Qnil; |
284f4730 JB |
8965 | update_mode_lines++; |
8966 | ||
24597608 | 8967 | Vunread_command_events = Qnil; |
86e5706b | 8968 | unread_command_char = -1; |
284f4730 JB |
8969 | |
8970 | discard_tty_input (); | |
8971 | ||
7ee32cda | 8972 | kbd_fetch_ptr = kbd_store_ptr; |
beecf6a1 | 8973 | Ffillarray (kbd_buffer_frame_or_window, Qnil); |
284f4730 JB |
8974 | input_pending = 0; |
8975 | ||
8976 | return Qnil; | |
8977 | } | |
8978 | \f | |
8979 | DEFUN ("suspend-emacs", Fsuspend_emacs, Ssuspend_emacs, 0, 1, "", | |
8980 | "Stop Emacs and return to superior process. You can resume later.\n\ | |
8026024c KH |
8981 | If `cannot-suspend' is non-nil, or if the system doesn't support job\n\ |
8982 | control, run a subshell instead.\n\n\ | |
284f4730 | 8983 | If optional arg STUFFSTRING is non-nil, its characters are stuffed\n\ |
b7d2ebbf RS |
8984 | to be read as terminal input by Emacs's parent, after suspension.\n\ |
8985 | \n\ | |
bbdc2092 RS |
8986 | Before suspending, run the normal hook `suspend-hook'.\n\ |
8987 | After resumption run the normal hook `suspend-resume-hook'.\n\ | |
284f4730 JB |
8988 | \n\ |
8989 | Some operating systems cannot stop the Emacs process and resume it later.\n\ | |
b7d2ebbf | 8990 | On such systems, Emacs starts a subshell instead of suspending.") |
284f4730 JB |
8991 | (stuffstring) |
8992 | Lisp_Object stuffstring; | |
8993 | { | |
3a69360c | 8994 | Lisp_Object tem; |
284f4730 JB |
8995 | int count = specpdl_ptr - specpdl; |
8996 | int old_height, old_width; | |
8997 | int width, height; | |
b7d2ebbf | 8998 | struct gcpro gcpro1, gcpro2; |
284f4730 JB |
8999 | |
9000 | if (!NILP (stuffstring)) | |
9001 | CHECK_STRING (stuffstring, 0); | |
284f4730 | 9002 | |
1e95ed28 JB |
9003 | /* Run the functions in suspend-hook. */ |
9004 | if (!NILP (Vrun_hooks)) | |
9005 | call1 (Vrun_hooks, intern ("suspend-hook")); | |
284f4730 | 9006 | |
b7d2ebbf | 9007 | GCPRO1 (stuffstring); |
ff11dfa1 | 9008 | get_frame_size (&old_width, &old_height); |
284f4730 JB |
9009 | reset_sys_modes (); |
9010 | /* sys_suspend can get an error if it tries to fork a subshell | |
9011 | and the system resources aren't available for that. */ | |
91a0da02 | 9012 | record_unwind_protect ((Lisp_Object (*) P_ ((Lisp_Object))) init_sys_modes, |
d52a7a92 | 9013 | Qnil); |
284f4730 | 9014 | stuff_buffered_input (stuffstring); |
8026024c KH |
9015 | if (cannot_suspend) |
9016 | sys_subshell (); | |
9017 | else | |
9018 | sys_suspend (); | |
284f4730 JB |
9019 | unbind_to (count, Qnil); |
9020 | ||
9021 | /* Check if terminal/window size has changed. | |
9022 | Note that this is not useful when we are running directly | |
9023 | with a window system; but suspend should be disabled in that case. */ | |
ff11dfa1 | 9024 | get_frame_size (&width, &height); |
284f4730 | 9025 | if (width != old_width || height != old_height) |
788f89eb | 9026 | change_frame_size (SELECTED_FRAME (), height, width, 0, 0, 0); |
284f4730 | 9027 | |
1e95ed28 | 9028 | /* Run suspend-resume-hook. */ |
284f4730 JB |
9029 | if (!NILP (Vrun_hooks)) |
9030 | call1 (Vrun_hooks, intern ("suspend-resume-hook")); | |
df0f2ba1 | 9031 | |
284f4730 JB |
9032 | UNGCPRO; |
9033 | return Qnil; | |
9034 | } | |
9035 | ||
9036 | /* If STUFFSTRING is a string, stuff its contents as pending terminal input. | |
eb8c3be9 | 9037 | Then in any case stuff anything Emacs has read ahead and not used. */ |
284f4730 | 9038 | |
07a59269 | 9039 | void |
284f4730 JB |
9040 | stuff_buffered_input (stuffstring) |
9041 | Lisp_Object stuffstring; | |
9042 | { | |
284f4730 | 9043 | /* stuff_char works only in BSD, versions 4.2 and up. */ |
6df54671 | 9044 | #ifdef BSD_SYSTEM |
284f4730 | 9045 | #ifndef BSD4_1 |
612b78ef | 9046 | register unsigned char *p; |
612b78ef | 9047 | |
8c18cbfb | 9048 | if (STRINGP (stuffstring)) |
284f4730 JB |
9049 | { |
9050 | register int count; | |
9051 | ||
9052 | p = XSTRING (stuffstring)->data; | |
fc932ac6 | 9053 | count = STRING_BYTES (XSTRING (stuffstring)); |
284f4730 JB |
9054 | while (count-- > 0) |
9055 | stuff_char (*p++); | |
9056 | stuff_char ('\n'); | |
9057 | } | |
9058 | /* Anything we have read ahead, put back for the shell to read. */ | |
beecf6a1 | 9059 | /* ?? What should this do when we have multiple keyboards?? |
c5fdd383 | 9060 | Should we ignore anything that was typed in at the "wrong" kboard? */ |
beecf6a1 | 9061 | for (; kbd_fetch_ptr != kbd_store_ptr; kbd_fetch_ptr++) |
284f4730 | 9062 | { |
beecf6a1 KH |
9063 | if (kbd_fetch_ptr == kbd_buffer + KBD_BUFFER_SIZE) |
9064 | kbd_fetch_ptr = kbd_buffer; | |
9065 | if (kbd_fetch_ptr->kind == ascii_keystroke) | |
9066 | stuff_char (kbd_fetch_ptr->code); | |
9067 | kbd_fetch_ptr->kind = no_event; | |
9068 | (XVECTOR (kbd_buffer_frame_or_window)->contents[kbd_fetch_ptr | |
9069 | - kbd_buffer] | |
7b4aedb9 | 9070 | = Qnil); |
284f4730 JB |
9071 | } |
9072 | input_pending = 0; | |
9073 | #endif | |
6df54671 | 9074 | #endif /* BSD_SYSTEM and not BSD4_1 */ |
284f4730 JB |
9075 | } |
9076 | \f | |
dfcf069d | 9077 | void |
ffd56f97 JB |
9078 | set_waiting_for_input (time_to_clear) |
9079 | EMACS_TIME *time_to_clear; | |
284f4730 | 9080 | { |
ffd56f97 | 9081 | input_available_clear_time = time_to_clear; |
284f4730 JB |
9082 | |
9083 | /* Tell interrupt_signal to throw back to read_char, */ | |
9084 | waiting_for_input = 1; | |
9085 | ||
9086 | /* If interrupt_signal was called before and buffered a C-g, | |
9087 | make it run again now, to avoid timing error. */ | |
9088 | if (!NILP (Vquit_flag)) | |
9089 | quit_throw_to_read_char (); | |
284f4730 JB |
9090 | } |
9091 | ||
07a59269 | 9092 | void |
284f4730 JB |
9093 | clear_waiting_for_input () |
9094 | { | |
9095 | /* Tell interrupt_signal not to throw back to read_char, */ | |
9096 | waiting_for_input = 0; | |
ffd56f97 | 9097 | input_available_clear_time = 0; |
284f4730 JB |
9098 | } |
9099 | ||
9100 | /* This routine is called at interrupt level in response to C-G. | |
9101 | If interrupt_input, this is the handler for SIGINT. | |
9102 | Otherwise, it is called from kbd_buffer_store_event, | |
9103 | in handling SIGIO or SIGTINT. | |
9104 | ||
9105 | If `waiting_for_input' is non zero, then unless `echoing' is nonzero, | |
9106 | immediately throw back to read_char. | |
9107 | ||
9108 | Otherwise it sets the Lisp variable quit-flag not-nil. | |
9109 | This causes eval to throw, when it gets a chance. | |
9110 | If quit-flag is already non-nil, it stops the job right away. */ | |
9111 | ||
9112 | SIGTYPE | |
91c049d4 RS |
9113 | interrupt_signal (signalnum) /* If we don't have an argument, */ |
9114 | int signalnum; /* some compilers complain in signal calls. */ | |
284f4730 JB |
9115 | { |
9116 | char c; | |
9117 | /* Must preserve main program's value of errno. */ | |
9118 | int old_errno = errno; | |
788f89eb | 9119 | struct frame *sf = SELECTED_FRAME (); |
284f4730 | 9120 | |
5970a8cb | 9121 | #if defined (USG) && !defined (POSIX_SIGNALS) |
7a80a6f6 RS |
9122 | if (!read_socket_hook && NILP (Vwindow_system)) |
9123 | { | |
9124 | /* USG systems forget handlers when they are used; | |
9125 | must reestablish each time */ | |
9126 | signal (SIGINT, interrupt_signal); | |
9127 | signal (SIGQUIT, interrupt_signal); | |
9128 | } | |
284f4730 JB |
9129 | #endif /* USG */ |
9130 | ||
9131 | cancel_echoing (); | |
9132 | ||
31e4e97b | 9133 | if (!NILP (Vquit_flag) |
788f89eb | 9134 | && (FRAME_TERMCAP_P (sf) || FRAME_MSDOS_P (sf))) |
284f4730 | 9135 | { |
31e4e97b EZ |
9136 | /* If SIGINT isn't blocked, don't let us be interrupted by |
9137 | another SIGINT, it might be harmful due to non-reentrancy | |
9138 | in I/O functions. */ | |
9139 | sigblock (sigmask (SIGINT)); | |
9140 | ||
284f4730 JB |
9141 | fflush (stdout); |
9142 | reset_sys_modes (); | |
31e4e97b | 9143 | |
284f4730 JB |
9144 | #ifdef SIGTSTP /* Support possible in later USG versions */ |
9145 | /* | |
9146 | * On systems which can suspend the current process and return to the original | |
9147 | * shell, this command causes the user to end up back at the shell. | |
9148 | * The "Auto-save" and "Abort" questions are not asked until | |
9149 | * the user elects to return to emacs, at which point he can save the current | |
9150 | * job and either dump core or continue. | |
9151 | */ | |
9152 | sys_suspend (); | |
9153 | #else | |
9154 | #ifdef VMS | |
9155 | if (sys_suspend () == -1) | |
9156 | { | |
9157 | printf ("Not running as a subprocess;\n"); | |
9158 | printf ("you can continue or abort.\n"); | |
9159 | } | |
9160 | #else /* not VMS */ | |
9161 | /* Perhaps should really fork an inferior shell? | |
9162 | But that would not provide any way to get back | |
9163 | to the original shell, ever. */ | |
9164 | printf ("No support for stopping a process on this operating system;\n"); | |
9165 | printf ("you can continue or abort.\n"); | |
9166 | #endif /* not VMS */ | |
9167 | #endif /* not SIGTSTP */ | |
80e4aa30 RS |
9168 | #ifdef MSDOS |
9169 | /* We must remain inside the screen area when the internal terminal | |
9170 | is used. Note that [Enter] is not echoed by dos. */ | |
9171 | cursor_to (0, 0); | |
9172 | #endif | |
118d6ca9 RS |
9173 | /* It doesn't work to autosave while GC is in progress; |
9174 | the code used for auto-saving doesn't cope with the mark bit. */ | |
9175 | if (!gc_in_progress) | |
9fd7d808 | 9176 | { |
118d6ca9 RS |
9177 | printf ("Auto-save? (y or n) "); |
9178 | fflush (stdout); | |
9179 | if (((c = getchar ()) & ~040) == 'Y') | |
9180 | { | |
9181 | Fdo_auto_save (Qt, Qnil); | |
80e4aa30 | 9182 | #ifdef MSDOS |
118d6ca9 | 9183 | printf ("\r\nAuto-save done"); |
80e4aa30 | 9184 | #else /* not MSDOS */ |
118d6ca9 | 9185 | printf ("Auto-save done\n"); |
80e4aa30 | 9186 | #endif /* not MSDOS */ |
118d6ca9 RS |
9187 | } |
9188 | while (c != '\n') c = getchar (); | |
9fd7d808 | 9189 | } |
118d6ca9 RS |
9190 | else |
9191 | { | |
9192 | /* During GC, it must be safe to reenable quitting again. */ | |
9193 | Vinhibit_quit = Qnil; | |
9194 | #ifdef MSDOS | |
9195 | printf ("\r\n"); | |
9196 | #endif /* not MSDOS */ | |
9197 | printf ("Garbage collection in progress; cannot auto-save now\r\n"); | |
9198 | printf ("but will instead do a real quit after garbage collection ends\r\n"); | |
9199 | fflush (stdout); | |
9200 | } | |
9201 | ||
80e4aa30 RS |
9202 | #ifdef MSDOS |
9203 | printf ("\r\nAbort? (y or n) "); | |
9204 | #else /* not MSDOS */ | |
284f4730 JB |
9205 | #ifdef VMS |
9206 | printf ("Abort (and enter debugger)? (y or n) "); | |
9207 | #else /* not VMS */ | |
9208 | printf ("Abort (and dump core)? (y or n) "); | |
9209 | #endif /* not VMS */ | |
80e4aa30 | 9210 | #endif /* not MSDOS */ |
284f4730 JB |
9211 | fflush (stdout); |
9212 | if (((c = getchar ()) & ~040) == 'Y') | |
9213 | abort (); | |
9214 | while (c != '\n') c = getchar (); | |
80e4aa30 RS |
9215 | #ifdef MSDOS |
9216 | printf ("\r\nContinuing...\r\n"); | |
9217 | #else /* not MSDOS */ | |
284f4730 | 9218 | printf ("Continuing...\n"); |
80e4aa30 | 9219 | #endif /* not MSDOS */ |
284f4730 JB |
9220 | fflush (stdout); |
9221 | init_sys_modes (); | |
31e4e97b | 9222 | sigfree (); |
284f4730 JB |
9223 | } |
9224 | else | |
9225 | { | |
9226 | /* If executing a function that wants to be interrupted out of | |
9227 | and the user has not deferred quitting by binding `inhibit-quit' | |
9228 | then quit right away. */ | |
9229 | if (immediate_quit && NILP (Vinhibit_quit)) | |
9230 | { | |
e39da3d7 RS |
9231 | struct gl_state_s saved; |
9232 | struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; | |
9233 | ||
284f4730 JB |
9234 | immediate_quit = 0; |
9235 | sigfree (); | |
e39da3d7 RS |
9236 | saved = gl_state; |
9237 | GCPRO4 (saved.object, saved.global_code, | |
9238 | saved.current_syntax_table, saved.old_prop); | |
284f4730 | 9239 | Fsignal (Qquit, Qnil); |
e39da3d7 RS |
9240 | gl_state = saved; |
9241 | UNGCPRO; | |
284f4730 JB |
9242 | } |
9243 | else | |
9244 | /* Else request quit when it's safe */ | |
9245 | Vquit_flag = Qt; | |
9246 | } | |
9247 | ||
9248 | if (waiting_for_input && !echoing) | |
9249 | quit_throw_to_read_char (); | |
9250 | ||
9251 | errno = old_errno; | |
9252 | } | |
9253 | ||
9254 | /* Handle a C-g by making read_char return C-g. */ | |
9255 | ||
07a59269 | 9256 | void |
284f4730 JB |
9257 | quit_throw_to_read_char () |
9258 | { | |
284f4730 JB |
9259 | sigfree (); |
9260 | /* Prevent another signal from doing this before we finish. */ | |
f76475ad | 9261 | clear_waiting_for_input (); |
284f4730 JB |
9262 | input_pending = 0; |
9263 | ||
24597608 | 9264 | Vunread_command_events = Qnil; |
86e5706b | 9265 | unread_command_char = -1; |
284f4730 | 9266 | |
087feab3 RS |
9267 | #if 0 /* Currently, sit_for is called from read_char without turning |
9268 | off polling. And that can call set_waiting_for_input. | |
9269 | It seems to be harmless. */ | |
e6b01c14 JB |
9270 | #ifdef POLL_FOR_INPUT |
9271 | /* May be > 1 if in recursive minibuffer. */ | |
9272 | if (poll_suppress_count == 0) | |
9273 | abort (); | |
9274 | #endif | |
087feab3 | 9275 | #endif |
4c52b668 | 9276 | if (FRAMEP (internal_last_event_frame) |
788f89eb | 9277 | && !EQ (internal_last_event_frame, selected_frame)) |
719191cf RS |
9278 | do_switch_frame (make_lispy_switch_frame (internal_last_event_frame), |
9279 | Qnil, 0); | |
e6b01c14 | 9280 | |
284f4730 JB |
9281 | _longjmp (getcjmp, 1); |
9282 | } | |
9283 | \f | |
9284 | DEFUN ("set-input-mode", Fset_input_mode, Sset_input_mode, 3, 4, 0, | |
9285 | "Set mode of reading keyboard input.\n\ | |
464f8898 RS |
9286 | First arg INTERRUPT non-nil means use input interrupts;\n\ |
9287 | nil means use CBREAK mode.\n\ | |
9288 | Second arg FLOW non-nil means use ^S/^Q flow control for output to terminal\n\ | |
284f4730 | 9289 | (no effect except in CBREAK mode).\n\ |
b04904fb RS |
9290 | Third arg META t means accept 8-bit input (for a Meta key).\n\ |
9291 | META nil means ignore the top bit, on the assumption it is parity.\n\ | |
9292 | Otherwise, accept 8-bit input and don't use the top bit for Meta.\n\ | |
a8ee7ef9 RS |
9293 | Optional fourth arg QUIT if non-nil specifies character to use for quitting.\n\ |
9294 | See also `current-input-mode'.") | |
284f4730 JB |
9295 | (interrupt, flow, meta, quit) |
9296 | Lisp_Object interrupt, flow, meta, quit; | |
9297 | { | |
9298 | if (!NILP (quit) | |
8c18cbfb | 9299 | && (!INTEGERP (quit) || XINT (quit) < 0 || XINT (quit) > 0400)) |
34f04431 RS |
9300 | error ("set-input-mode: QUIT must be an ASCII character"); |
9301 | ||
9302 | #ifdef POLL_FOR_INPUT | |
9303 | stop_polling (); | |
9304 | #endif | |
284f4730 | 9305 | |
07de30b9 | 9306 | #ifndef DOS_NT |
2ee250ec | 9307 | /* this causes startup screen to be restored and messes with the mouse */ |
284f4730 | 9308 | reset_sys_modes (); |
2ee250ec RS |
9309 | #endif |
9310 | ||
284f4730 JB |
9311 | #ifdef SIGIO |
9312 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ | |
284f4730 | 9313 | if (read_socket_hook) |
9a0f60bb KH |
9314 | { |
9315 | /* When using X, don't give the user a real choice, | |
9316 | because we haven't implemented the mechanisms to support it. */ | |
9317 | #ifdef NO_SOCK_SIGIO | |
9318 | interrupt_input = 0; | |
9319 | #else /* not NO_SOCK_SIGIO */ | |
9320 | interrupt_input = 1; | |
284f4730 | 9321 | #endif /* NO_SOCK_SIGIO */ |
9a0f60bb KH |
9322 | } |
9323 | else | |
284f4730 JB |
9324 | interrupt_input = !NILP (interrupt); |
9325 | #else /* not SIGIO */ | |
9326 | interrupt_input = 0; | |
9327 | #endif /* not SIGIO */ | |
9a0f60bb | 9328 | |
284f4730 JB |
9329 | /* Our VMS input only works by interrupts, as of now. */ |
9330 | #ifdef VMS | |
9331 | interrupt_input = 1; | |
9332 | #endif | |
9a0f60bb | 9333 | |
284f4730 | 9334 | flow_control = !NILP (flow); |
b04904fb RS |
9335 | if (NILP (meta)) |
9336 | meta_key = 0; | |
9337 | else if (EQ (meta, Qt)) | |
9338 | meta_key = 1; | |
9339 | else | |
9340 | meta_key = 2; | |
284f4730 JB |
9341 | if (!NILP (quit)) |
9342 | /* Don't let this value be out of range. */ | |
9343 | quit_char = XINT (quit) & (meta_key ? 0377 : 0177); | |
9344 | ||
07de30b9 | 9345 | #ifndef DOS_NT |
284f4730 | 9346 | init_sys_modes (); |
2ee250ec | 9347 | #endif |
34f04431 RS |
9348 | |
9349 | #ifdef POLL_FOR_INPUT | |
9350 | poll_suppress_count = 1; | |
9351 | start_polling (); | |
9352 | #endif | |
284f4730 JB |
9353 | return Qnil; |
9354 | } | |
80645119 JB |
9355 | |
9356 | DEFUN ("current-input-mode", Fcurrent_input_mode, Scurrent_input_mode, 0, 0, 0, | |
9357 | "Return information about the way Emacs currently reads keyboard input.\n\ | |
9358 | The value is a list of the form (INTERRUPT FLOW META QUIT), where\n\ | |
9359 | INTERRUPT is non-nil if Emacs is using interrupt-driven input; if\n\ | |
9360 | nil, Emacs is using CBREAK mode.\n\ | |
9361 | FLOW is non-nil if Emacs uses ^S/^Q flow control for output to the\n\ | |
9362 | terminal; this does not apply if Emacs uses interrupt-driven input.\n\ | |
a8ee7ef9 RS |
9363 | META is t if accepting 8-bit input with 8th bit as Meta flag.\n\ |
9364 | META nil means ignoring the top bit, on the assumption it is parity.\n\ | |
9365 | META is neither t nor nil if accepting 8-bit input and using\n\ | |
9366 | all 8 bits as the character code.\n\ | |
80645119 JB |
9367 | QUIT is the character Emacs currently uses to quit.\n\ |
9368 | The elements of this list correspond to the arguments of\n\ | |
a8ee7ef9 | 9369 | `set-input-mode'.") |
80645119 JB |
9370 | () |
9371 | { | |
9372 | Lisp_Object val[4]; | |
9373 | ||
9374 | val[0] = interrupt_input ? Qt : Qnil; | |
9375 | val[1] = flow_control ? Qt : Qnil; | |
a8ee7ef9 | 9376 | val[2] = meta_key == 2 ? make_number (0) : meta_key == 1 ? Qt : Qnil; |
bb9e9bed | 9377 | XSETFASTINT (val[3], quit_char); |
80645119 | 9378 | |
bf673a7a | 9379 | return Flist (sizeof (val) / sizeof (val[0]), val); |
80645119 JB |
9380 | } |
9381 | ||
284f4730 | 9382 | \f |
6c6083a9 | 9383 | /* |
c5fdd383 | 9384 | * Set up a new kboard object with reasonable initial values. |
6c6083a9 KH |
9385 | */ |
9386 | void | |
c5fdd383 KH |
9387 | init_kboard (kb) |
9388 | KBOARD *kb; | |
6c6083a9 | 9389 | { |
217258d5 | 9390 | kb->Voverriding_terminal_local_map = Qnil; |
6c7178b9 | 9391 | kb->Vlast_command = Qnil; |
75045dcb | 9392 | kb->Vreal_last_command = Qnil; |
d8bcf58e | 9393 | kb->Vprefix_arg = Qnil; |
75045dcb | 9394 | kb->Vlast_prefix_arg = Qnil; |
c5fdd383 KH |
9395 | kb->kbd_queue = Qnil; |
9396 | kb->kbd_queue_has_data = 0; | |
9397 | kb->immediate_echo = 0; | |
9398 | kb->echoptr = kb->echobuf; | |
9399 | kb->echo_after_prompt = -1; | |
9400 | kb->kbd_macro_buffer = 0; | |
9401 | kb->kbd_macro_bufsize = 0; | |
9402 | kb->defining_kbd_macro = Qnil; | |
9403 | kb->Vlast_kbd_macro = Qnil; | |
9404 | kb->reference_count = 0; | |
7c97ffdc | 9405 | kb->Vsystem_key_alist = Qnil; |
142e6c73 | 9406 | kb->system_key_syms = Qnil; |
9ba47203 | 9407 | kb->Vdefault_minibuffer_frame = Qnil; |
6c6083a9 KH |
9408 | } |
9409 | ||
9410 | /* | |
c5fdd383 | 9411 | * Destroy the contents of a kboard object, but not the object itself. |
8e6208c5 | 9412 | * We use this just before deleting it, or if we're going to initialize |
6c6083a9 KH |
9413 | * it a second time. |
9414 | */ | |
e50b8090 | 9415 | static void |
c5fdd383 KH |
9416 | wipe_kboard (kb) |
9417 | KBOARD *kb; | |
6c6083a9 | 9418 | { |
c5fdd383 KH |
9419 | if (kb->kbd_macro_buffer) |
9420 | xfree (kb->kbd_macro_buffer); | |
6c6083a9 KH |
9421 | } |
9422 | ||
e50b8090 KH |
9423 | #ifdef MULTI_KBOARD |
9424 | void | |
9425 | delete_kboard (kb) | |
9426 | KBOARD *kb; | |
9427 | { | |
9428 | KBOARD **kbp; | |
9429 | for (kbp = &all_kboards; *kbp != kb; kbp = &(*kbp)->next_kboard) | |
9430 | if (*kbp == NULL) | |
9431 | abort (); | |
9432 | *kbp = kb->next_kboard; | |
9433 | wipe_kboard (kb); | |
9434 | xfree (kb); | |
9435 | } | |
9436 | #endif | |
9437 | ||
dfcf069d | 9438 | void |
284f4730 JB |
9439 | init_keyboard () |
9440 | { | |
284f4730 JB |
9441 | /* This is correct before outermost invocation of the editor loop */ |
9442 | command_loop_level = -1; | |
9443 | immediate_quit = 0; | |
9444 | quit_char = Ctl ('g'); | |
24597608 | 9445 | Vunread_command_events = Qnil; |
86e5706b | 9446 | unread_command_char = -1; |
87dd9b9b | 9447 | EMACS_SET_SECS_USECS (timer_idleness_start_time, -1, -1); |
284f4730 | 9448 | total_keys = 0; |
9deb415a | 9449 | recent_keys_index = 0; |
beecf6a1 KH |
9450 | kbd_fetch_ptr = kbd_buffer; |
9451 | kbd_store_ptr = kbd_buffer; | |
9452 | kbd_buffer_frame_or_window | |
9453 | = Fmake_vector (make_number (KBD_BUFFER_SIZE), Qnil); | |
2eb6bfbe | 9454 | #ifdef HAVE_MOUSE |
a9d77f1f | 9455 | do_mouse_tracking = Qnil; |
2eb6bfbe | 9456 | #endif |
284f4730 JB |
9457 | input_pending = 0; |
9458 | ||
4c52b668 KH |
9459 | /* This means that command_loop_1 won't try to select anything the first |
9460 | time through. */ | |
9461 | internal_last_event_frame = Qnil; | |
9462 | Vlast_event_frame = internal_last_event_frame; | |
4c52b668 | 9463 | |
c5fdd383 | 9464 | #ifdef MULTI_KBOARD |
aaca43a1 | 9465 | current_kboard = initial_kboard; |
6c6083a9 | 9466 | #endif |
aaca43a1 | 9467 | wipe_kboard (current_kboard); |
c5fdd383 | 9468 | init_kboard (current_kboard); |
07d2b8de | 9469 | |
beecf6a1 KH |
9470 | if (initialized) |
9471 | Ffillarray (kbd_buffer_frame_or_window, Qnil); | |
9472 | ||
9473 | kbd_buffer_frame_or_window | |
9474 | = Fmake_vector (make_number (KBD_BUFFER_SIZE), Qnil); | |
7a80a6f6 | 9475 | if (!noninteractive && !read_socket_hook && NILP (Vwindow_system)) |
284f4730 JB |
9476 | { |
9477 | signal (SIGINT, interrupt_signal); | |
cb5df6ae | 9478 | #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS) |
284f4730 JB |
9479 | /* For systems with SysV TERMIO, C-g is set up for both SIGINT and |
9480 | SIGQUIT and we can't tell which one it will give us. */ | |
9481 | signal (SIGQUIT, interrupt_signal); | |
9482 | #endif /* HAVE_TERMIO */ | |
7a80a6f6 | 9483 | } |
284f4730 JB |
9484 | /* Note SIGIO has been undef'd if FIONREAD is missing. */ |
9485 | #ifdef SIGIO | |
7a80a6f6 RS |
9486 | if (!noninteractive) |
9487 | signal (SIGIO, input_available_signal); | |
8ea0a720 | 9488 | #endif /* SIGIO */ |
284f4730 JB |
9489 | |
9490 | /* Use interrupt input by default, if it works and noninterrupt input | |
9491 | has deficiencies. */ | |
9492 | ||
9493 | #ifdef INTERRUPT_INPUT | |
9494 | interrupt_input = 1; | |
9495 | #else | |
9496 | interrupt_input = 0; | |
9497 | #endif | |
9498 | ||
9499 | /* Our VMS input only works by interrupts, as of now. */ | |
9500 | #ifdef VMS | |
9501 | interrupt_input = 1; | |
9502 | #endif | |
9503 | ||
9504 | sigfree (); | |
9505 | dribble = 0; | |
9506 | ||
9507 | if (keyboard_init_hook) | |
9508 | (*keyboard_init_hook) (); | |
9509 | ||
9510 | #ifdef POLL_FOR_INPUT | |
9511 | poll_suppress_count = 1; | |
9512 | start_polling (); | |
9513 | #endif | |
9514 | } | |
9515 | ||
df0f2ba1 | 9516 | /* This type's only use is in syms_of_keyboard, to initialize the |
284f4730 JB |
9517 | event header symbols and put properties on them. */ |
9518 | struct event_head { | |
9519 | Lisp_Object *var; | |
9520 | char *name; | |
9521 | Lisp_Object *kind; | |
9522 | }; | |
9523 | ||
9524 | struct event_head head_table[] = { | |
7b4aedb9 | 9525 | &Qmouse_movement, "mouse-movement", &Qmouse_movement, |
3c370943 | 9526 | &Qscroll_bar_movement, "scroll-bar-movement", &Qmouse_movement, |
7b4aedb9 | 9527 | &Qswitch_frame, "switch-frame", &Qswitch_frame, |
bbdc2092 | 9528 | &Qdelete_frame, "delete-frame", &Qdelete_frame, |
af17bd2b KH |
9529 | &Qiconify_frame, "iconify-frame", &Qiconify_frame, |
9530 | &Qmake_frame_visible, "make-frame-visible", &Qmake_frame_visible, | |
284f4730 JB |
9531 | }; |
9532 | ||
dfcf069d | 9533 | void |
284f4730 JB |
9534 | syms_of_keyboard () |
9535 | { | |
9ea173e8 | 9536 | /* Tool-bars. */ |
7ee32cda GM |
9537 | QCimage = intern (":image"); |
9538 | staticpro (&QCimage); | |
9539 | ||
9540 | staticpro (&Qhelp_echo); | |
9541 | Qhelp_echo = intern ("help-echo"); | |
9542 | ||
e8886a1d RS |
9543 | staticpro (&item_properties); |
9544 | item_properties = Qnil; | |
9545 | ||
9ea173e8 GM |
9546 | staticpro (&tool_bar_item_properties); |
9547 | tool_bar_item_properties = Qnil; | |
9548 | staticpro (&tool_bar_items_vector); | |
9549 | tool_bar_items_vector = Qnil; | |
7ee32cda | 9550 | |
d5eecefb RS |
9551 | staticpro (&real_this_command); |
9552 | real_this_command = Qnil; | |
9553 | ||
d925fb39 RS |
9554 | Qtimer_event_handler = intern ("timer-event-handler"); |
9555 | staticpro (&Qtimer_event_handler); | |
9556 | ||
2e894dab RS |
9557 | Qdisabled_command_hook = intern ("disabled-command-hook"); |
9558 | staticpro (&Qdisabled_command_hook); | |
9559 | ||
284f4730 JB |
9560 | Qself_insert_command = intern ("self-insert-command"); |
9561 | staticpro (&Qself_insert_command); | |
9562 | ||
9563 | Qforward_char = intern ("forward-char"); | |
9564 | staticpro (&Qforward_char); | |
9565 | ||
9566 | Qbackward_char = intern ("backward-char"); | |
9567 | staticpro (&Qbackward_char); | |
9568 | ||
9569 | Qdisabled = intern ("disabled"); | |
9570 | staticpro (&Qdisabled); | |
9571 | ||
e58aa385 RS |
9572 | Qundefined = intern ("undefined"); |
9573 | staticpro (&Qundefined); | |
9574 | ||
86e5706b RS |
9575 | Qpre_command_hook = intern ("pre-command-hook"); |
9576 | staticpro (&Qpre_command_hook); | |
9577 | ||
9578 | Qpost_command_hook = intern ("post-command-hook"); | |
9579 | staticpro (&Qpost_command_hook); | |
9580 | ||
59aadc81 RS |
9581 | Qpost_command_idle_hook = intern ("post-command-idle-hook"); |
9582 | staticpro (&Qpost_command_idle_hook); | |
9583 | ||
3ef14e46 RS |
9584 | Qdeferred_action_function = intern ("deferred-action-function"); |
9585 | staticpro (&Qdeferred_action_function); | |
9586 | ||
40932d1a RS |
9587 | Qcommand_hook_internal = intern ("command-hook-internal"); |
9588 | staticpro (&Qcommand_hook_internal); | |
9589 | ||
284f4730 JB |
9590 | Qfunction_key = intern ("function-key"); |
9591 | staticpro (&Qfunction_key); | |
13b5e56c | 9592 | Qmouse_click = intern ("mouse-click"); |
284f4730 | 9593 | staticpro (&Qmouse_click); |
07de30b9 GV |
9594 | #ifdef WINDOWSNT |
9595 | Qmouse_wheel = intern ("mouse-wheel"); | |
9596 | staticpro (&Qmouse_wheel); | |
1161d367 GV |
9597 | Qlanguage_change = intern ("language-change"); |
9598 | staticpro (&Qlanguage_change); | |
07de30b9 | 9599 | #endif |
a24dc617 RS |
9600 | Qdrag_n_drop = intern ("drag-n-drop"); |
9601 | staticpro (&Qdrag_n_drop); | |
284f4730 | 9602 | |
5bf68f6e AS |
9603 | Qusr1_signal = intern ("usr1-signal"); |
9604 | staticpro (&Qusr1_signal); | |
9605 | Qusr2_signal = intern ("usr2-signal"); | |
9606 | staticpro (&Qusr2_signal); | |
9607 | ||
598a9fa7 JB |
9608 | Qmenu_enable = intern ("menu-enable"); |
9609 | staticpro (&Qmenu_enable); | |
e8886a1d RS |
9610 | Qmenu_alias = intern ("menu-alias"); |
9611 | staticpro (&Qmenu_alias); | |
9612 | QCenable = intern (":enable"); | |
9613 | staticpro (&QCenable); | |
9614 | QCvisible = intern (":visible"); | |
9615 | staticpro (&QCvisible); | |
7ee32cda GM |
9616 | QChelp = intern (":help"); |
9617 | staticpro (&QChelp); | |
e8886a1d RS |
9618 | QCfilter = intern (":filter"); |
9619 | staticpro (&QCfilter); | |
9620 | QCbutton = intern (":button"); | |
9621 | staticpro (&QCbutton); | |
74c1de23 RS |
9622 | QCkeys = intern (":keys"); |
9623 | staticpro (&QCkeys); | |
9624 | QCkey_sequence = intern (":key-sequence"); | |
9625 | staticpro (&QCkey_sequence); | |
e8886a1d RS |
9626 | QCtoggle = intern (":toggle"); |
9627 | staticpro (&QCtoggle); | |
9628 | QCradio = intern (":radio"); | |
9629 | staticpro (&QCradio); | |
598a9fa7 | 9630 | |
284f4730 JB |
9631 | Qmode_line = intern ("mode-line"); |
9632 | staticpro (&Qmode_line); | |
e5d77022 JB |
9633 | Qvertical_line = intern ("vertical-line"); |
9634 | staticpro (&Qvertical_line); | |
3c370943 JB |
9635 | Qvertical_scroll_bar = intern ("vertical-scroll-bar"); |
9636 | staticpro (&Qvertical_scroll_bar); | |
5ec75a55 RS |
9637 | Qmenu_bar = intern ("menu-bar"); |
9638 | staticpro (&Qmenu_bar); | |
4bb994d1 JB |
9639 | |
9640 | Qabove_handle = intern ("above-handle"); | |
9641 | staticpro (&Qabove_handle); | |
9642 | Qhandle = intern ("handle"); | |
9643 | staticpro (&Qhandle); | |
9644 | Qbelow_handle = intern ("below-handle"); | |
9645 | staticpro (&Qbelow_handle); | |
db08707d RS |
9646 | Qup = intern ("up"); |
9647 | staticpro (&Qup); | |
9648 | Qdown = intern ("down"); | |
9649 | staticpro (&Qdown); | |
7ee32cda GM |
9650 | Qtop = intern ("top"); |
9651 | staticpro (&Qtop); | |
9652 | Qbottom = intern ("bottom"); | |
9653 | staticpro (&Qbottom); | |
9654 | Qend_scroll = intern ("end-scroll"); | |
9655 | staticpro (&Qend_scroll); | |
284f4730 | 9656 | |
cd21b839 | 9657 | Qevent_kind = intern ("event-kind"); |
284f4730 | 9658 | staticpro (&Qevent_kind); |
88cb0656 JB |
9659 | Qevent_symbol_elements = intern ("event-symbol-elements"); |
9660 | staticpro (&Qevent_symbol_elements); | |
0a7f1fc0 JB |
9661 | Qevent_symbol_element_mask = intern ("event-symbol-element-mask"); |
9662 | staticpro (&Qevent_symbol_element_mask); | |
9663 | Qmodifier_cache = intern ("modifier-cache"); | |
9664 | staticpro (&Qmodifier_cache); | |
284f4730 | 9665 | |
48e416d4 RS |
9666 | Qrecompute_lucid_menubar = intern ("recompute-lucid-menubar"); |
9667 | staticpro (&Qrecompute_lucid_menubar); | |
9668 | Qactivate_menubar_hook = intern ("activate-menubar-hook"); | |
9669 | staticpro (&Qactivate_menubar_hook); | |
9670 | ||
f4eef8b4 RS |
9671 | Qpolling_period = intern ("polling-period"); |
9672 | staticpro (&Qpolling_period); | |
9673 | ||
7d18f9ae RS |
9674 | Qinput_method_function = intern ("input-method-function"); |
9675 | staticpro (&Qinput_method_function); | |
9676 | ||
d5eecefb RS |
9677 | Qinput_method_exit_on_first_char = intern ("input-method-exit-on-first-char"); |
9678 | staticpro (&Qinput_method_exit_on_first_char); | |
9679 | Qinput_method_use_echo_area = intern ("input-method-use-echo-area"); | |
9680 | staticpro (&Qinput_method_use_echo_area); | |
9681 | ||
9682 | Fset (Qinput_method_exit_on_first_char, Qnil); | |
9683 | Fset (Qinput_method_use_echo_area, Qnil); | |
9684 | ||
284f4730 JB |
9685 | { |
9686 | struct event_head *p; | |
9687 | ||
9688 | for (p = head_table; | |
9689 | p < head_table + (sizeof (head_table) / sizeof (head_table[0])); | |
9690 | p++) | |
9691 | { | |
9692 | *p->var = intern (p->name); | |
9693 | staticpro (p->var); | |
9694 | Fput (*p->var, Qevent_kind, *p->kind); | |
88cb0656 | 9695 | Fput (*p->var, Qevent_symbol_elements, Fcons (*p->var, Qnil)); |
284f4730 JB |
9696 | } |
9697 | } | |
9698 | ||
7b4aedb9 JB |
9699 | button_down_location = Fmake_vector (make_number (NUM_MOUSE_BUTTONS), Qnil); |
9700 | staticpro (&button_down_location); | |
88cb0656 JB |
9701 | |
9702 | { | |
9703 | int i; | |
9704 | int len = sizeof (modifier_names) / sizeof (modifier_names[0]); | |
9705 | ||
9706 | modifier_symbols = Fmake_vector (make_number (len), Qnil); | |
9707 | for (i = 0; i < len; i++) | |
86e5706b RS |
9708 | if (modifier_names[i]) |
9709 | XVECTOR (modifier_symbols)->contents[i] = intern (modifier_names[i]); | |
88cb0656 JB |
9710 | staticpro (&modifier_symbols); |
9711 | } | |
9712 | ||
9deb415a JB |
9713 | recent_keys = Fmake_vector (make_number (NUM_RECENT_KEYS), Qnil); |
9714 | staticpro (&recent_keys); | |
9715 | ||
6569cc8d | 9716 | this_command_keys = Fmake_vector (make_number (40), Qnil); |
715d9345 | 9717 | staticpro (&this_command_keys); |
6569cc8d | 9718 | |
7d18f9ae RS |
9719 | raw_keybuf = Fmake_vector (make_number (30), Qnil); |
9720 | staticpro (&raw_keybuf); | |
9721 | ||
03b4122a BF |
9722 | Qextended_command_history = intern ("extended-command-history"); |
9723 | Fset (Qextended_command_history, Qnil); | |
9724 | staticpro (&Qextended_command_history); | |
9725 | ||
beecf6a1 KH |
9726 | kbd_buffer_frame_or_window |
9727 | = Fmake_vector (make_number (KBD_BUFFER_SIZE), Qnil); | |
9728 | staticpro (&kbd_buffer_frame_or_window); | |
9729 | ||
24597608 RS |
9730 | accent_key_syms = Qnil; |
9731 | staticpro (&accent_key_syms); | |
9732 | ||
284f4730 JB |
9733 | func_key_syms = Qnil; |
9734 | staticpro (&func_key_syms); | |
9735 | ||
9736 | mouse_syms = Qnil; | |
9737 | staticpro (&mouse_syms); | |
9738 | ||
07de30b9 GV |
9739 | #ifdef WINDOWSNT |
9740 | mouse_wheel_syms = Qnil; | |
9741 | staticpro (&mouse_wheel_syms); | |
a24dc617 RS |
9742 | |
9743 | drag_n_drop_syms = Qnil; | |
9744 | staticpro (&drag_n_drop_syms); | |
07de30b9 GV |
9745 | #endif |
9746 | ||
cd21b839 JB |
9747 | unread_switch_frame = Qnil; |
9748 | staticpro (&unread_switch_frame); | |
9749 | ||
fe412364 EN |
9750 | internal_last_event_frame = Qnil; |
9751 | staticpro (&internal_last_event_frame); | |
9752 | ||
9753 | read_key_sequence_cmd = Qnil; | |
9754 | staticpro (&read_key_sequence_cmd); | |
9755 | ||
759860a6 RS |
9756 | menu_bar_one_keymap_changed_items = Qnil; |
9757 | staticpro (&menu_bar_one_keymap_changed_items); | |
9758 | ||
a1706c30 | 9759 | defsubr (&Sevent_convert_list); |
284f4730 | 9760 | defsubr (&Sread_key_sequence); |
e39da3d7 | 9761 | defsubr (&Sread_key_sequence_vector); |
284f4730 | 9762 | defsubr (&Srecursive_edit); |
2eb6bfbe | 9763 | #ifdef HAVE_MOUSE |
284f4730 | 9764 | defsubr (&Strack_mouse); |
2eb6bfbe | 9765 | #endif |
284f4730 JB |
9766 | defsubr (&Sinput_pending_p); |
9767 | defsubr (&Scommand_execute); | |
9768 | defsubr (&Srecent_keys); | |
9769 | defsubr (&Sthis_command_keys); | |
e39da3d7 | 9770 | defsubr (&Sthis_command_keys_vector); |
6321824f | 9771 | defsubr (&Sthis_single_command_keys); |
7d18f9ae | 9772 | defsubr (&Sthis_single_command_raw_keys); |
71918b75 | 9773 | defsubr (&Sreset_this_command_lengths); |
82e6e5af | 9774 | defsubr (&Sclear_this_command_keys); |
284f4730 JB |
9775 | defsubr (&Ssuspend_emacs); |
9776 | defsubr (&Sabort_recursive_edit); | |
9777 | defsubr (&Sexit_recursive_edit); | |
9778 | defsubr (&Srecursion_depth); | |
9779 | defsubr (&Stop_level); | |
9780 | defsubr (&Sdiscard_input); | |
9781 | defsubr (&Sopen_dribble_file); | |
9782 | defsubr (&Sset_input_mode); | |
80645119 | 9783 | defsubr (&Scurrent_input_mode); |
284f4730 JB |
9784 | defsubr (&Sexecute_extended_command); |
9785 | ||
284f4730 | 9786 | DEFVAR_LISP ("last-command-char", &last_command_char, |
86e5706b RS |
9787 | "Last input event that was part of a command."); |
9788 | ||
186cf719 | 9789 | DEFVAR_LISP_NOPRO ("last-command-event", &last_command_char, |
86e5706b | 9790 | "Last input event that was part of a command."); |
284f4730 | 9791 | |
7d6de002 | 9792 | DEFVAR_LISP ("last-nonmenu-event", &last_nonmenu_event, |
86e5706b | 9793 | "Last input event in a command, except for mouse menu events.\n\ |
7d6de002 RS |
9794 | Mouse menus give back keys that don't look like mouse events;\n\ |
9795 | this variable holds the actual mouse event that led to the menu,\n\ | |
9796 | so that you can determine whether the command was run by mouse or not."); | |
9797 | ||
284f4730 | 9798 | DEFVAR_LISP ("last-input-char", &last_input_char, |
86e5706b RS |
9799 | "Last input event."); |
9800 | ||
186cf719 | 9801 | DEFVAR_LISP_NOPRO ("last-input-event", &last_input_char, |
86e5706b | 9802 | "Last input event."); |
284f4730 | 9803 | |
24597608 | 9804 | DEFVAR_LISP ("unread-command-events", &Vunread_command_events, |
7d18f9ae RS |
9805 | "List of events to be read as the command input.\n\ |
9806 | These events are processed first, before actual keyboard input."); | |
9807 | Vunread_command_events = Qnil; | |
284f4730 | 9808 | |
86e5706b RS |
9809 | DEFVAR_INT ("unread-command-char", &unread_command_char, |
9810 | "If not -1, an object to be read as next command input event."); | |
9811 | ||
7d18f9ae RS |
9812 | DEFVAR_LISP ("unread-post-input-method-events", &Vunread_post_input_method_events, |
9813 | "List of events to be processed as input by input methods.\n\ | |
9814 | These events are processed after `unread-command-events', but\n\ | |
9815 | before actual keyboard input."); | |
9816 | Vunread_post_input_method_events = Qnil; | |
9817 | ||
9818 | DEFVAR_LISP ("unread-input-method-events", &Vunread_input_method_events, | |
9819 | "List of events to be processed as input by input methods.\n\ | |
9820 | These events are processed after `unread-command-events', but\n\ | |
9821 | before actual keyboard input."); | |
9822 | Vunread_input_method_events = Qnil; | |
9823 | ||
284f4730 | 9824 | DEFVAR_LISP ("meta-prefix-char", &meta_prefix_char, |
b283f79e KH |
9825 | "Meta-prefix character code.\n\ |
9826 | Meta-foo as command input turns into this character followed by foo."); | |
18cd2eeb | 9827 | XSETINT (meta_prefix_char, 033); |
284f4730 | 9828 | |
6c7178b9 | 9829 | DEFVAR_KBOARD ("last-command", Vlast_command, |
b283f79e KH |
9830 | "The last command executed.\n\ |
9831 | Normally a symbol with a function definition, but can be whatever was found\n\ | |
9832 | in the keymap, or whatever the variable `this-command' was set to by that\n\ | |
9833 | command.\n\ | |
18f29056 RS |
9834 | \n\ |
9835 | The value `mode-exit' is special; it means that the previous command\n\ | |
9836 | read an event that told it to exit, and it did so and unread that event.\n\ | |
9837 | In other words, the present command is the event that made the previous\n\ | |
9838 | command exit.\n\ | |
9839 | \n\ | |
9840 | The value `kill-region' is special; it means that the previous command\n\ | |
9841 | was a kill command."); | |
284f4730 | 9842 | |
75045dcb RS |
9843 | DEFVAR_KBOARD ("real-last-command", Vreal_last_command, |
9844 | "Same as `last-command', but never altered by Lisp code."); | |
9845 | ||
d5eecefb | 9846 | DEFVAR_LISP ("this-command", &Vthis_command, |
284f4730 JB |
9847 | "The command now being executed.\n\ |
9848 | The command can set this variable; whatever is put here\n\ | |
9849 | will be in `last-command' during the following command."); | |
d5eecefb | 9850 | Vthis_command = Qnil; |
284f4730 JB |
9851 | |
9852 | DEFVAR_INT ("auto-save-interval", &auto_save_interval, | |
9853 | "*Number of keyboard input characters between auto-saves.\n\ | |
9854 | Zero means disable autosaving due to number of characters typed."); | |
9855 | auto_save_interval = 300; | |
9856 | ||
9857 | DEFVAR_LISP ("auto-save-timeout", &Vauto_save_timeout, | |
9858 | "*Number of seconds idle time before auto-save.\n\ | |
06ef7355 RS |
9859 | Zero or nil means disable auto-saving due to idleness.\n\ |
9860 | After auto-saving due to this many seconds of idle time,\n\ | |
84447c71 | 9861 | Emacs also does a garbage collection if that seems to be warranted."); |
bb9e9bed | 9862 | XSETFASTINT (Vauto_save_timeout, 30); |
284f4730 JB |
9863 | |
9864 | DEFVAR_INT ("echo-keystrokes", &echo_keystrokes, | |
9865 | "*Nonzero means echo unfinished commands after this many seconds of pause."); | |
9866 | echo_keystrokes = 1; | |
9867 | ||
9868 | DEFVAR_INT ("polling-period", &polling_period, | |
9869 | "*Interval between polling for input during Lisp execution.\n\ | |
9870 | The reason for polling is to make C-g work to stop a running program.\n\ | |
9871 | Polling is needed only when using X windows and SIGIO does not work.\n\ | |
9872 | Polling is automatically disabled in all other cases."); | |
9873 | polling_period = 2; | |
df0f2ba1 | 9874 | |
564dc952 | 9875 | DEFVAR_LISP ("double-click-time", &Vdouble_click_time, |
fbcd35bd | 9876 | "*Maximum time between mouse clicks to make a double-click.\n\ |
564dc952 JB |
9877 | Measured in milliseconds. nil means disable double-click recognition;\n\ |
9878 | t means double-clicks have no time limit and are detected\n\ | |
fbcd35bd | 9879 | by position only."); |
aab06933 | 9880 | Vdouble_click_time = make_number (500); |
fbcd35bd | 9881 | |
03361bcc RS |
9882 | DEFVAR_BOOL ("inhibit-local-menu-bar-menus", &inhibit_local_menu_bar_menus, |
9883 | "*Non-nil means inhibit local map menu bar menus."); | |
9884 | inhibit_local_menu_bar_menus = 0; | |
9885 | ||
284f4730 | 9886 | DEFVAR_INT ("num-input-keys", &num_input_keys, |
c43b1734 | 9887 | "Number of complete key sequences read as input so far.\n\ |
58ce35fb KH |
9888 | This includes key sequences read from keyboard macros.\n\ |
9889 | The number is effectively the number of interactive command invocations."); | |
284f4730 JB |
9890 | num_input_keys = 0; |
9891 | ||
c43b1734 RS |
9892 | DEFVAR_INT ("num-nonmacro-input-events", &num_nonmacro_input_events, |
9893 | "Number of input events read from the keyboard so far.\n\ | |
9894 | This does not include events generated by keyboard macros."); | |
9895 | num_nonmacro_input_events = 0; | |
fa90970d | 9896 | |
4c52b668 KH |
9897 | DEFVAR_LISP ("last-event-frame", &Vlast_event_frame, |
9898 | "The frame in which the most recently read event occurred.\n\ | |
9899 | If the last event came from a keyboard macro, this is set to `macro'."); | |
9900 | Vlast_event_frame = Qnil; | |
9901 | ||
fa90970d RS |
9902 | /* This variable is set up in sysdep.c. */ |
9903 | DEFVAR_LISP ("tty-erase-char", &Vtty_erase_char, | |
9904 | "The ERASE character as set by the user with stty."); | |
9905 | ||
7e85b935 | 9906 | DEFVAR_LISP ("help-char", &Vhelp_char, |
284f4730 JB |
9907 | "Character to recognize as meaning Help.\n\ |
9908 | When it is read, do `(eval help-form)', and display result if it's a string.\n\ | |
9909 | If the value of `help-form' is nil, this char can be read normally."); | |
18cd2eeb | 9910 | XSETINT (Vhelp_char, Ctl ('H')); |
284f4730 | 9911 | |
ecb7cb34 KH |
9912 | DEFVAR_LISP ("help-event-list", &Vhelp_event_list, |
9913 | "List of input events to recognize as meaning Help.\n\ | |
9914 | These work just like the value of `help-char' (see that)."); | |
9915 | Vhelp_event_list = Qnil; | |
9916 | ||
284f4730 | 9917 | DEFVAR_LISP ("help-form", &Vhelp_form, |
7e85b935 | 9918 | "Form to execute when character `help-char' is read.\n\ |
284f4730 JB |
9919 | If the form returns a string, that string is displayed.\n\ |
9920 | If `help-form' is nil, the help char is not recognized."); | |
9921 | Vhelp_form = Qnil; | |
9922 | ||
7e85b935 RS |
9923 | DEFVAR_LISP ("prefix-help-command", &Vprefix_help_command, |
9924 | "Command to run when `help-char' character follows a prefix key.\n\ | |
9925 | This command is used only when there is no actual binding\n\ | |
9926 | for that character after that prefix key."); | |
9927 | Vprefix_help_command = Qnil; | |
9928 | ||
284f4730 JB |
9929 | DEFVAR_LISP ("top-level", &Vtop_level, |
9930 | "Form to evaluate when Emacs starts up.\n\ | |
9931 | Useful to set before you dump a modified Emacs."); | |
9932 | Vtop_level = Qnil; | |
9933 | ||
9934 | DEFVAR_LISP ("keyboard-translate-table", &Vkeyboard_translate_table, | |
f9414d62 | 9935 | "Translate table for keyboard input, or nil.\n\ |
284f4730 | 9936 | Each character is looked up in this string and the contents used instead.\n\ |
f9414d62 RS |
9937 | The value may be a string, a vector, or a char-table.\n\ |
9938 | If it is a string or vector of length N,\n\ | |
9939 | character codes N and up are untranslated.\n\ | |
9940 | In a vector or a char-table, an element which is nil means \"no translation\"."); | |
284f4730 JB |
9941 | Vkeyboard_translate_table = Qnil; |
9942 | ||
8026024c | 9943 | DEFVAR_BOOL ("cannot-suspend", &cannot_suspend, |
b283f79e KH |
9944 | "Non-nil means to always spawn a subshell instead of suspending.\n\ |
9945 | \(Even if the operating system has support for stopping a process.\)"); | |
8026024c KH |
9946 | cannot_suspend = 0; |
9947 | ||
284f4730 | 9948 | DEFVAR_BOOL ("menu-prompting", &menu_prompting, |
7d6de002 | 9949 | "Non-nil means prompt with menus when appropriate.\n\ |
284f4730 | 9950 | This is done when reading from a keymap that has a prompt string,\n\ |
7d6de002 RS |
9951 | for elements that have prompt strings.\n\ |
9952 | The menu is displayed on the screen\n\ | |
9953 | if X menus were enabled at configuration\n\ | |
9954 | time and the previous event was a mouse click prefix key.\n\ | |
9955 | Otherwise, menu prompting uses the echo area."); | |
284f4730 JB |
9956 | menu_prompting = 1; |
9957 | ||
9958 | DEFVAR_LISP ("menu-prompt-more-char", &menu_prompt_more_char, | |
9959 | "Character to see next line of menu prompt.\n\ | |
9960 | Type this character while in a menu prompt to rotate around the lines of it."); | |
18cd2eeb | 9961 | XSETINT (menu_prompt_more_char, ' '); |
9fa4395d RS |
9962 | |
9963 | DEFVAR_INT ("extra-keyboard-modifiers", &extra_keyboard_modifiers, | |
9964 | "A mask of additional modifier keys to use with every keyboard character.\n\ | |
ad163903 JB |
9965 | Emacs applies the modifiers of the character stored here to each keyboard\n\ |
9966 | character it reads. For example, after evaluating the expression\n\ | |
9d9f56dd | 9967 | (setq extra-keyboard-modifiers ?\\C-x)\n\ |
80645119 JB |
9968 | all input characters will have the control modifier applied to them.\n\ |
9969 | \n\ | |
9d9f56dd | 9970 | Note that the character ?\\C-@, equivalent to the integer zero, does\n\ |
80645119 | 9971 | not count as a control character; rather, it counts as a character\n\ |
27203ead | 9972 | with no modifiers; thus, setting `extra-keyboard-modifiers' to zero\n\ |
80645119 | 9973 | cancels any modification."); |
9fa4395d | 9974 | extra_keyboard_modifiers = 0; |
86e5706b RS |
9975 | |
9976 | DEFVAR_LISP ("deactivate-mark", &Vdeactivate_mark, | |
9977 | "If an editing command sets this to t, deactivate the mark afterward.\n\ | |
9978 | The command loop sets this to nil before each command,\n\ | |
9979 | and tests the value when the command returns.\n\ | |
9980 | Buffer modification stores t in this variable."); | |
9981 | Vdeactivate_mark = Qnil; | |
9982 | ||
b0f2a7bf KH |
9983 | DEFVAR_LISP ("command-hook-internal", &Vcommand_hook_internal, |
9984 | "Temporary storage of pre-command-hook or post-command-hook."); | |
9985 | Vcommand_hook_internal = Qnil; | |
9986 | ||
86e5706b | 9987 | DEFVAR_LISP ("pre-command-hook", &Vpre_command_hook, |
a1fd42c0 | 9988 | "Normal hook run before each command is executed.\n\ |
307958d6 RS |
9989 | If an unhandled error happens in running this hook,\n\ |
9990 | the hook value is set to nil, since otherwise the error\n\ | |
9991 | might happen repeatedly and make Emacs nonfunctional."); | |
86e5706b RS |
9992 | Vpre_command_hook = Qnil; |
9993 | ||
9994 | DEFVAR_LISP ("post-command-hook", &Vpost_command_hook, | |
a1fd42c0 | 9995 | "Normal hook run after each command is executed.\n\ |
307958d6 RS |
9996 | If an unhandled error happens in running this hook,\n\ |
9997 | the hook value is set to nil, since otherwise the error\n\ | |
9998 | might happen repeatedly and make Emacs nonfunctional."); | |
86e5706b | 9999 | Vpost_command_hook = Qnil; |
48e416d4 | 10000 | |
59aadc81 RS |
10001 | DEFVAR_LISP ("post-command-idle-hook", &Vpost_command_idle_hook, |
10002 | "Normal hook run after each command is executed, if idle.\n\ | |
d4d62e8d RS |
10003 | Errors running the hook are caught and ignored.\n\ |
10004 | This feature is obsolete; use idle timers instead. See `etc/NEWS'."); | |
59aadc81 RS |
10005 | Vpost_command_idle_hook = Qnil; |
10006 | ||
10007 | DEFVAR_INT ("post-command-idle-delay", &post_command_idle_delay, | |
7051b69b | 10008 | "Delay time before running `post-command-idle-hook'.\n\ |
59aadc81 RS |
10009 | This is measured in microseconds."); |
10010 | post_command_idle_delay = 100000; | |
10011 | ||
cdb9d665 RS |
10012 | #if 0 |
10013 | DEFVAR_LISP ("echo-area-clear-hook", ..., | |
10014 | "Normal hook run when clearing the echo area."); | |
10015 | #endif | |
10016 | Qecho_area_clear_hook = intern ("echo-area-clear-hook"); | |
10017 | XSYMBOL (Qecho_area_clear_hook)->value = Qnil; | |
10018 | ||
48e416d4 RS |
10019 | DEFVAR_LISP ("lucid-menu-bar-dirty-flag", &Vlucid_menu_bar_dirty_flag, |
10020 | "t means menu bar, specified Lucid style, needs to be recomputed."); | |
10021 | Vlucid_menu_bar_dirty_flag = Qnil; | |
a73c5e29 | 10022 | |
9f9c0e27 RS |
10023 | DEFVAR_LISP ("menu-bar-final-items", &Vmenu_bar_final_items, |
10024 | "List of menu bar items to move to the end of the menu bar.\n\ | |
a612e298 | 10025 | The elements of the list are event types that may have menu bar bindings."); |
9f9c0e27 | 10026 | Vmenu_bar_final_items = Qnil; |
e9bf89a0 | 10027 | |
217258d5 KH |
10028 | DEFVAR_KBOARD ("overriding-terminal-local-map", |
10029 | Voverriding_terminal_local_map, | |
779b34df | 10030 | "Per-terminal keymap that overrides all other local keymaps.\n\ |
217258d5 | 10031 | If this variable is non-nil, it is used as a keymap instead of the\n\ |
779b34df RS |
10032 | buffer's local map, and the minor mode keymaps and text property keymaps.\n\ |
10033 | This variable is intended to let commands such as `universal-argumemnt'\n\ | |
10034 | set up a different keymap for reading the next command."); | |
217258d5 | 10035 | |
9dd3131c RS |
10036 | DEFVAR_LISP ("overriding-local-map", &Voverriding_local_map, |
10037 | "Keymap that overrides all other local keymaps.\n\ | |
10038 | If this variable is non-nil, it is used as a keymap instead of the\n\ | |
10039 | buffer's local map, and the minor mode keymaps and text property keymaps."); | |
10040 | Voverriding_local_map = Qnil; | |
10041 | ||
d0a49716 RS |
10042 | DEFVAR_LISP ("overriding-local-map-menu-flag", &Voverriding_local_map_menu_flag, |
10043 | "Non-nil means `overriding-local-map' applies to the menu bar.\n\ | |
10044 | Otherwise, the menu bar continues to reflect the buffer's local map\n\ | |
10045 | and the minor mode maps regardless of `overriding-local-map'."); | |
10046 | Voverriding_local_map_menu_flag = Qnil; | |
10047 | ||
7f07d5ca RS |
10048 | DEFVAR_LISP ("special-event-map", &Vspecial_event_map, |
10049 | "Keymap defining bindings for special events to execute at low level."); | |
10050 | Vspecial_event_map = Fcons (intern ("keymap"), Qnil); | |
10051 | ||
71edead1 | 10052 | DEFVAR_LISP ("track-mouse", &do_mouse_tracking, |
a53c7666 | 10053 | "*Non-nil means generate motion events for mouse motion."); |
80e4aa30 | 10054 | |
7c97ffdc | 10055 | DEFVAR_KBOARD ("system-key-alist", Vsystem_key_alist, |
270a208f | 10056 | "Alist of system-specific X windows key symbols.\n\ |
80e4aa30 | 10057 | Each element should have the form (N . SYMBOL) where N is the\n\ |
270a208f | 10058 | numeric keysym code (sans the \"system-specific\" bit 1<<28)\n\ |
80e4aa30 | 10059 | and SYMBOL is its name."); |
8a792f3a RS |
10060 | |
10061 | DEFVAR_LISP ("deferred-action-list", &Vdeferred_action_list, | |
10062 | "List of deferred actions to be performed at a later time.\n\ | |
10063 | The precise format isn't relevant here; we just check whether it is nil."); | |
10064 | Vdeferred_action_list = Qnil; | |
10065 | ||
10066 | DEFVAR_LISP ("deferred-action-function", &Vdeferred_action_function, | |
10067 | "Function to call to handle deferred actions, after each command.\n\ | |
10068 | This function is called with no arguments after each command\n\ | |
10069 | whenever `deferred-action-list' is non-nil."); | |
10070 | Vdeferred_action_function = Qnil; | |
6526ab49 RS |
10071 | |
10072 | DEFVAR_LISP ("suggest-key-bindings", &Vsuggest_key_bindings, | |
ac52ebd5 | 10073 | "*Non-nil means show the equivalent key-binding when M-x command has one.\n\ |
6526ab49 RS |
10074 | The value can be a length of time to show the message for.\n\ |
10075 | If the value is non-nil and not a number, we wait 2 seconds."); | |
10076 | Vsuggest_key_bindings = Qt; | |
8bb1c042 | 10077 | |
c04cbc3b | 10078 | DEFVAR_LISP ("timer-list", &Vtimer_list, |
d9d4c147 | 10079 | "List of active absolute time timers in order of increasing time"); |
c04cbc3b | 10080 | Vtimer_list = Qnil; |
d9d4c147 KH |
10081 | |
10082 | DEFVAR_LISP ("timer-idle-list", &Vtimer_idle_list, | |
10083 | "List of active idle-time timers in order of increasing time"); | |
10084 | Vtimer_idle_list = Qnil; | |
7d18f9ae RS |
10085 | |
10086 | DEFVAR_LISP ("input-method-function", &Vinput_method_function, | |
10087 | "If non-nil, the function that implements the current input method.\n\ | |
10088 | It's called with one argument, a printing character that was just read.\n\ | |
10089 | \(That means a character with code 040...0176.)\n\ | |
10090 | Typically this function uses `read-event' to read additional events.\n\ | |
10091 | When it does so, it should first bind `input-method-function' to nil\n\ | |
10092 | so it will not be called recursively.\n\ | |
10093 | \n\ | |
10094 | The function should return a list of zero or more events\n\ | |
10095 | to be used as input. If it wants to put back some events\n\ | |
10096 | to be reconsidered, separately, by the input method,\n\ | |
d5eecefb RS |
10097 | it can add them to the beginning of `unread-command-events'.\n\ |
10098 | \n\ | |
10099 | The input method function can find in `input-method-previous-method'\n\ | |
10100 | the previous echo area message.\n\ | |
10101 | \n\ | |
10102 | The input method function should refer to the variables\n\ | |
10103 | `input-method-use-echo-area' and `input-method-exit-on-first-char'\n\ | |
10104 | for guidance on what to do."); | |
7d18f9ae | 10105 | Vinput_method_function = Qnil; |
d5eecefb RS |
10106 | |
10107 | DEFVAR_LISP ("input-method-previous-message", | |
10108 | &Vinput_method_previous_message, | |
a8b13665 | 10109 | "When `input-method-function' is called, hold the previous echo area message.\n\ |
d5eecefb RS |
10110 | This variable exists because `read-event' clears the echo area\n\ |
10111 | before running the input method. It is nil if there was no message."); | |
10112 | Vinput_method_previous_message = Qnil; | |
7ee32cda GM |
10113 | |
10114 | DEFVAR_LISP ("show-help-function", &Vshow_help_function, | |
10115 | "If non-nil, the function that implements the display of help.\n\ | |
10116 | It's called with one argument, the help string to display."); | |
10117 | Vshow_help_function = Qnil; | |
284f4730 JB |
10118 | } |
10119 | ||
dfcf069d | 10120 | void |
284f4730 JB |
10121 | keys_of_keyboard () |
10122 | { | |
10123 | initial_define_key (global_map, Ctl ('Z'), "suspend-emacs"); | |
10124 | initial_define_key (control_x_map, Ctl ('Z'), "suspend-emacs"); | |
10125 | initial_define_key (meta_map, Ctl ('C'), "exit-recursive-edit"); | |
10126 | initial_define_key (global_map, Ctl (']'), "abort-recursive-edit"); | |
10127 | initial_define_key (meta_map, 'x', "execute-extended-command"); | |
7f07d5ca RS |
10128 | |
10129 | initial_define_lispy_key (Vspecial_event_map, "delete-frame", | |
10130 | "handle-delete-frame"); | |
10131 | initial_define_lispy_key (Vspecial_event_map, "iconify-frame", | |
10132 | "ignore-event"); | |
10133 | initial_define_lispy_key (Vspecial_event_map, "make-frame-visible", | |
10134 | "ignore-event"); | |
284f4730 | 10135 | } |